1 5 10 20 One Billion Views Gaming Vlogger Musician Reactor Flag of England.svg MaleIcon 2008 YouTuber
Sidemen KSI W2S MiniminterIcon Vikkstar123. Zerkaa icon Behzinga Profile Images TBJZLAvi
Hey guys, It’s ya boy, KSIOlajideBT!

―KSI's Intro

Olajide Olayinka Williams "JJ" Olatunji[1][2] (born: June 19, 1993 (1993-06-19) [age 26]), better known online as KSI[3] (or KSIOlajideBT),[4] is an English YouTuber, filmmaker, actor, rapper, and professional boxer mainly known for his boxing, diss-tracks, vlogs and challenges with the Sidemen.


KSI has two solo YouTube channels, KSI and KSIOlajidebtHD. He's also a part of two group channels, Sidemen and MoreSidemen.

KSI's main channel is the second-most subscribed YouTube channel from the United Kingdom, whereas his second channel is the 6th most subscribed YouTube channel from the United Kingdom.[5] He is also the most subscribed person of color on YouTube.

Apart from being a YouTuber, KSI is also a rapper, actor and a boxer. KSI has done 5 music projects, which include four EPs (Keep Up, Jump Around, Space and Disstracktions) and one album called 'New Age'.[6] KSI's song 'Touch Down' was used in Dwayne Johnson & Zac Efron's movie "Baywatch".[7] KSI was the lead in the movie "Laid in America" which was released in 2016 and he has also done a documentary called 'Can't Lose' which was released in 2018.[8] KSI has also written three books - 'KSI: I Am a Bellend', 'How to Be a Youtube Kingpin and Dominate the Internet' and 'The Sidemen Book'.[9] So far KSI has had three boxing fights, one against Joe Weller and two against Logan Paul.[10] KSI won the fight against Joe Weller but KSI vs Logan Paul 1 was a majority draw. KSI won the rematch against Logan via split decision.

KSI is one of the most successful YouTubers in the world having an estimated net worth of $20 million.[11] His income sources include YouTube, social media, music streams & sales, touring, brand endorsements, merchandise, boxing, acting, selling books, etc.

Early Career

KSI created his first YouTube channel JideJunior in April 2008. Today, the channel has 20,000 subscribers. On the same date of the channel's creation, KSI uploaded his first video called LOOKING THROUGH SPACE. The video is a school project he made with his friend Patrick.

After that video appeared on YouTube, KSI started uploading FIFA and rap videos onto the channel. KSI uploaded his last video onto the JideJunior channel in March 2009, later abandoning it in 2011.

Creation of "KSI"

On 24 July 2009, KSI officially made his official YouTube channel. At the beginning of his YouTube career, he only uploaded gaming videos to his channel (mainly FIFA and Modern Warfare 2). On 15 August 2011, he released his first vlog titled KSIOlajidebt Vlog's | The History of my Name. In the video he revealed his face for the first time, and explained the meaning of "KSI". He stated that KSI meant Knowledge, Strength and Integrity. The video today has over 1 million views.

After that video, KSI continued to upload FIFA, but at the same time he uploaded more vlogs and sketches. His FIFA videos were also becoming more comedy-oriented, mixing various skits into the videos.

Creation of "KSIOlajideBT"

On 26 January 2011, KSI made his second YouTube channel called "KSIOlajideBT". The purpose of the channel was to solely upload gaming videos (in order to make the KSI channel a vlogging channel). KSI did not upload a video to this channel from early-2017 until 31 December 2018.

KSIOlajideBT stands for Knowledge, Strength and Integrity; Olajide (KSI's first name) and BT which stands for British telecom.

The Sidemen

Main article: Sidemen

On 29 October 2013, KSI creates The Ultimate Sidemen with Miniminter, Behzinga, Zerkaa, TBJZL and Vikkstar123. The Sidemen were officially formed (as we know them today) once W2S joined the group.


Until 2013, KSI was good friends with fellow YouTuber GudjonDaniel. The two created a lot of videos together on both channels, KSI even created Daniel's YouTube channel on 9 April 2010. The two drifted apart after KSI realised Daniel was simply using him to promote his own channel. In a KickTV interview on Daniel, the interviewers asked Daniel if he plays FIFA with KSI. He replied with "Who the fuck is that?".

After this incident, KSI took to Twitter to express his opinions. The two stopped collaborating and Daniel ended up getting a lot of hate for many years until he quit YouTube a few years later. In early 2018, the two tweeted a picture of themselves together announcing that they made up and that the beef had officially ended. It had taken nearly half a decade.


As the Sidemen continued to grow, so did KSI. Before the group had formed, he was still an iconic online star in the U.K. and was notable for his "Get Hyper" and "Heskey Time" videos (both of which were all the rage in British schools at the time).

KSI had made/has been featured in many videos with all of the Sidemen. Prior to their formation, he used to make many videos with Simon (whom he has been friends with since Year 8), Callux and more. He was always the most subscribed member of the Sidemen; closely followed by W2S.

His most known video made with the Sidemen is CROSSBAR CHALLENGE, which currently sits at over 50 million views. He also made collaborations with a lot of other famous British YouTubers such as Caspar, Joe Sugg, Calfreezy and Callux. Today, KSI sits at 20.8 million subscribers, and over 5 billion views.

Around 2014, he made multiple videos for the sporting company Rule 'Em Sports, where he'd take part in various challenges and activities with other YouTubers and celebrities.

KSI Army

The KSI Army was the general name for the fans of KSI - especially towards the beginning of his YouTube career. This name was popular during KSI's first peak in popularity from 2009 to 2011 but has significantly decreased in usage in recent years. His newer fans probably haven't even heard of the term.

Early Music Production

KSI branched out into rapping around the same time the Sidemen formed. On 26 October 2016, KSI embarked on his first European music tour, where he performed in the U.K., France, Germany, Netherlands and Belgium.

Due to certain fans complaining that KSI's music career had "taken over" his main YouTube channel, he decided to activate a VEVO channel. It is no longer used by him, as of 2020.

No Sleep

KSI featured on a single by British rapper Sway, titled No Sleep. The song reached number 44 on the UK Singles Chart. The music video for No Sleep was released on KSI's YouTube channel on 20 October 2013.


On 23 March 2015, KSI released his debut single Lamborghini, which features British rapper P Money. The song reached number 30 on the UK Singles Chart, and remained his highest charting song until the release of Down Like That in November 2019.

Keep UP (EP)

Later on in 2015, KSI revealed that he was preparing to release his debut EP. The lead single Keep Up was released on 13 November 2015 and features British rapper JME. The song was originally scheduled to be released on 1 January 2016, but was brought forward due to the song's appearance on Now That's What I Call Music! 92. Keep Up peaked at number 45 on the UK Singles Chart. On 8 January 2016, KSI released his debut EP titled Keep Up. The EP reached number 13 on the UK Albums Chart.

In early 2016, KSI announced that he would be releasing his second EP, due to be released towards the end of 2016. The lead single Goes Off which features British-Ghanaian musician Mista Silva was released on 29 April 2016. However, the single failed to make an impact on the UK Singles Chart.

Friends With Benefits

KSI released the EP's next single Friends With Benefits on 29 July 2016. The song features Dutch musicians MNDM and peaked at number 69 on the UK Singles Chart.

Jump Around

A new single titled Jump Around was released on 16 September 2016. The song features American rapper Waka Flocka Flame and samples the song Jump Around by House Of Pain. However, the single failed to make an impact on the UK Singles Chart. The music video for Jump Around was the first of KSI's music videos to not be released on his YouTube channel; Instead it was released on his newly established VEVO channel. KSI released his second EP titled Jump Around on 28 October 2016. However, the EP failed to make an impact on the UK Albums Chart.

Events - 2017

Disillusionment with Fame

KSI did not upload any videos to any of his YouTube channels from February to June 2017. He also "blacked out" all profile pictures and banners across all his YouTube and social media accounts. He additionally took down videos worth over two billion views and deleted all of his Instagram posts except for one. This began to worry many of his fans, with some thinking he'd be diagnosed with a terminal illness or was suffering from depression.

KSI followed this up with a series of since-deleted tweets where he explained that he had come to dislike his "fame" and the special privileges he knows he gets on the grounds of being a "celebrity" and stated that he would no longer like to be called a celebrity and wants to become a more "normal person". He also tweeted a quote by Charles Darwin that says: "We stopped looking for monsters under our bed when we realized that they were inside us.".

In an interview with DramaAlert, KSI said he did all of this so he could "evaluate himself as a person" and stated that he that he "doesn't care about the fame or money" and that he wants to "cleanse himself" as a human. KSI had been completely inactive on all his social media until he uploaded a photo on Instagram on 6 May 2017 saying "Growth".

He was, however, occasionally seen in the other Sidemen videos, such as those uploaded by Miniminter and Behzinga. He also took part in the 2017 charity football match.

After his return, in Josh's Homegrown Podcast, JJ stated that he was tired of all the controversy and restrictions that come with the life of a YouTuber. JJ said he didn't like the state of the website and how people no longer made videos for fun. He traveled around the world when he was off the internet and claimed that he was "trying to evolve". Eventually, he explained how he no longer wanted to feel so "trapped" and would focus more on the reason he wanted to do YouTube in the first place, which was to enjoy making content.

Space EP

On 23 June 2017, KSI posted a new video, entitled "It's been a while...", implying that his return to YouTube is imminent. Alongside posting that video, he also tweeted out about an upcoming EP, called Space. It was released on 30 June 2017.

Four days later (27 June 2017), KSI posted another video, his music video for the song Creature. It's the only song that has been released from the Space EP so far. It was previewed in the "It's been a while..." video, as the song appears to be heard in the background of the video.

The description of the video states "for Alfie". Alfie is a fan of KSI and Deji who is living with bone cancer. KSI and his brother visited Alfie prior to the release of the song (and gave him a shirt). It is thought that the video is dedicated to him.

"Alfie meets his heroes, KSI and Deji Alfie meets his heroes, KSI and Deji Alfie meeting his true heroes KSI & Deji. K.S K.S.I - CREATURE It's been a while... It's been a while..."

Sidemen War

Main article: Sidemen Beef

Leaving the Sidemen

On 3 August 2017, KSI tweeted out that he was planning to leave the Sidemen. He followed this up with a YouTube video citing Behzinga as his main reason for leaving. After having the blame put on him, Behzinga decided to release a disstrack against KSI named "Drama". The song was uploaded on 7 August. Out of nowhere, on 8 August, W2S released his own track against KSI named "KSI Sucks".

After a week, on 12 August, KSI released (with RiceGum) his own diss track against Behzinga called "Earthquake". On 13 August, KSI released his second diss track on W2S named "Little Boy". The drama quickly escalated until Behzinga released - on 18 August - his second diss track on KSI; responding to "Earthquake".

A few days later, W2S released his own second diss track called "KSI Exposed". KSI released another diss named "Two Birds One Stone", targeting both W2S and Joe Weller. It was the last diss track KSI made against members of the Sidemen.


On 20 August, NetNobody released his own diss track against KSI named "'Diss Track ED". Eventually KSI got in contact with NetNobody's ex-girlfriend who had used NetNobody and treated him horribly, making a collaborative diss track against NetNobody named "Adam's Apple". NetNobody released his own diss track against the two named "Bend the Knee". At the end of the video, NetNobody reveals that he entered the drama only so he could get his son back, because his ex doesn't let him visit the child for various of reasons.

Review of Disstracktions

At the end of "Adam's Apple", KSI revealed that he'd be compiling the disstracks into an EP called "Disstracktions". The EP was released in September 2017.

List Of Tracks

Little Boy - (13 August 2017) Earthquake - (12 August 2017) Two Birds One Stone - (24 August 2017) Adam's Apple - (8 September 2017) Noob - (September 2017) Medusa - (September 2017)

Release of Transforming

On 15 September 2017, KSI released his new song "Transforming". In the song, KSI raps about everyone not understanding him and not letting him be himself.

Events - 2018

Release of Uncontrollable

On 31 January 2018, KSI released his new song Uncontrollable. As the title says, KSI raps about no one can control him. It was basically a teaser of the boxing match against Joe Weller. The song was used for his ringwalk on the day of the boxing match.

Boxing Match

Main article: KSI V Joe Weller

Events - 2019

Return To Second Channel

After over a year of not posting videos on his second channel, he posted an announcement vid on December 31 of 2018, announcing that he would return to posting regular content on his second channel.

Beef with MaximillianMus

Maximillianmus and KSI had a small beef in late January 2019, at the time Max released a song called "Oh Yeah Yeah" which throughout the song, repeated the phrase "Oh yeah yeah" I'm not gonna count, but let's just say, a lot of times. The song went viral and hundreds of videos comment sections were being raided by people spamming "Oh yeah yeah" on them, one of the channels that was affected by this was KSI. KSI tried to stop this, since he thought it was ruining YouTube, by starting "Operation Blackout" where you would blackout your profile picture, and just spam "STOP" on all YouTube comment sections being raided by "Oh yeah yeah" comments When he was doing a One Question Go video, Max managed to get in the server in time, and confronted KSI about Operation Blackout. The operation was a failure, so KSI surrendered and changed his profile pic to Max's except with a bandana temporarily, and that fixed his comment section, and after a couple months the meme died down. It is assumed that he and Max are now on good terms.

New Age Album

In 2019, he and Randolph started working on an album together called "New Age" that would have 10 songs on it, 3 of them being singles. The album was released on April 12, 2019 and reached Number 17 in the UK Albums Chart.

New Age Tour

Throughout May–July, he and Randolph went on tour to promote the New Age Album. They played most of the songs from the New Age Album, but also played a lot of other songs from KSI's other albums like Space, and Disstracktions too.

Boxing Rematch

It was revealed on September 3 that the KSI v Logan Paul rematch was taking place on November 9 in the LA Staples Centre. The fight, unlike last time, is a professional boxing match with no head guards.

The fight resulted in a win by split decision for KSI.

Press Conference

The press conference for the rematch took place on September 14 in the Gilbert Lindsey Plaza, LA.

Down Like That

On November 7, 2019, just 2 days before the KSI V Logan Paul Rematch was held, KSI released a new single titled Down Like That, featuring American rappers Rick Ross and Lil Baby and British musician S-X. The song was used for KSI's ring walk during his rematch against Logan Paul, with live performances done by Rick Ross and S-X. It entered the UK Singles Chart at number 17 and peaked all the way up to number 10, making it KSI's highest-charting single to date, outperforming his previous highest-charting song, Lamborghini, which managed a number 30. A music video for the song premiered on November 22 on KSI's YouTube channel.

Events - 2020

Wake Up Call

Wake Up Call is a single released by KSI which features American rapper Trippie Redd. Wake Up Call was released on 31 Jan, 2020, the same day AnEsonGib fought Jake Paul. 6 days before the release, JJ teased the release in a tweet which shocked the viewers, as they did not expect a Trippie Redd feature.

External links

Music Video

KSI vs Jake Paul

Note: This is subject to change and the boxing match may not happen.
Right after Jake Paul beat AnEsonGib, the former challenged KSI to a boxing match. KSI entered the ring and had a face-down, accepting the challenge. As of March 2020, it is unknown when or where or even if the fight is taking place.


Poppin' is a single released by KSI which features American rappers Lil Pump and Smokepurpp. Poppin' was released on March 27, 2020. 8 days before, JJ asked his fans to guess who his next features were, and then they got leaked. 3 days before the release he released a snippet of the song, his verse.

Personal life

Olajide Olatunji was born and raised in England by Yinka & Jide Olatunji (who are of Nigerian descent) and, when first starting YouTube, lived with his parents in Watford alongside his brother, Deji. Olatunji can be considered partly responsible for the start of Deji's YouTube channel as they shared a sibling rivalry and used to appear in each others' videos.

Olatunji's overconfident and crazy personality means he sticks out in the FIFA YouTube community, and the humor in his videos often show the FIFA community's frustrations at the DEA and the FIFA games themselves. He is also very well known for his constant joking about his race as well as other issues that are known in society.

He used to date vlogger 'Seanyxxx' (better known as Seana), but broke up with her in 2014.

Channel Blackout

In 2017, KSI blacked out all of his social media accounts, including his YouTube channel. He deleted most of the channel's videos, going from over 1,100 videos to only a bit over 100. He also had 3 billion views, but since dropped to 1 billion due to privatizing over a thousand of his videos. KSI for around four months hadn't uploaded a single video, which decreased his channel growth until his return.

He expressed that the reason he did that was that he wanted a break from YouTube and wanted to do other things in life and be a better human being. In an interview with Keemstar, he said he felt the best he ever had in his life due to his decision and he could've deleted more videos that he thought didn't fit, but couldn't due to various reasons.

In June 2017, four months after his last video was uploaded, he uploaded a video stating that he would be returning to making videos. A week later, he uploaded a music video for a song called "Creature". On July 23, he talked to his YouTube audience for the first time where he said that he left YouTube because he wasn't enjoying it anymore and he wanted to start making content he enjoyed rather than content which is trending or what people want him to do as he did when he started YouTube. He explained that he did not like where YouTube was going, mainly shown by longer videos for high revenues and was glad for the people who understood where he is coming from and said he would return again soon.

The video received a lot of likes and views in a short amount of time and the channel's subscriber and view growth skyrocketed once again following the announcement.

A few months after his return, he retrieved all of his deleted videos and received all of his views back, now nearing 4 billion views. This has caused some people to believe he left YouTube, along with The Ultimate Sidemen for a short time, to take a vacation, promote his new songs and get his channel more attention.

Boxing Matches

KSI vs Joe Weller

On February 3, 2018, KSI competed in his first boxing match against fellow YouTuber Joe Weller at Copper Box Arena in Hackney Wick, London, winning the fight 1 minute and 30 seconds into the third round by a TKO. 

KSI vs Joe Weller

KSI's outfit for the fight

KSI had the upperhand throughout the fight but Joe stood his ground, until the third round in which KSI was officially declared the winner by the referee.

At the end of the fight, different Sidemen members entered the ring, congratulating KSI when it was determined he had won the fight. KSI showed respect to Weller after the fight and praised him for his commitment to raising awareness on mental health issues.

The fight was a massive success, drawing 1.6 million live viewers, 21 million views within a day, and over 25 million over the next several days, becoming the biggest white-collar boxing event of all time.

KSI then proceeded to call out Logan Paul and Jake Paul. Jake instead chose to fight KSI's brother, Deji. However, Logan Paul accepted KSI's challenge and the fight was confirmed to take place on 25 August 2018 at the Manchester Arena.

KSI vs Logan Paul

On the weekend of February 24, 2018, it was announced that the Paul brothers would be fighting the Olatunji brothers (KSI and his younger brother Deji) in a boxing match, with the matches divided between relative ages (the elder brother KSI vs. Logan Paul in one match and the younger brother Deji Olatunji vs. Jake Paul in another match). Jake Paul was the fan favorite to go against KSI, but Logan stepped in to go against KSI, which left Deji to go against Jake Paul.

KSI vs Logan Paul (2018)

KSI vs Logan Paul at Manchester Arena

The boxing matches took place on August 25, 2018, at the Manchester Arena in Manchester, United Kingdom.

Unlike the KSI vs. Joe Weller boxing match, this event was pay-per-view ($8 [US] or £6 [UK]) to watch online on YouTube.

One judge scored the fight in favor of KSI and two judges scored a draw, resulting in a majority draw. 

The fight sold out the Manchester Arena and did 1.3M PPV buys and was labeled as "the biggest event in YouTube history" and "the largest ever amateur boxing fight". Taking the sum of all the videos on KSIvsLogan channel, the even so far has got 107M views.

KSI vs Logan Paul II

The KSI vs Logan Paul rematch took place on November 9, 2019 at the Staples Center in Los Angeles, California.

KSI defeats Logan Paul 2019

KSI being announced as the winner

The fight was promoted by Eddie Hearn the cash boy of Matchroom Boxing and it was aired on DAZN in the United States, Canada, Germany, Switzerland, Italy, Span and Brazil, Sky Sports in the United Kingdom & Ireland and Fite TV in rest of the world.

The bout was scheduled for six three minute rounds in the cruiserweight division, with both fighters making their professional boxing debuts. 

As a professional event, only fighters with professional boxing licences, and no other YouTubers, were allowed to participate; this decision was met with contention from some in the YouTube community who were hoping to see others participate in what was originally a 'YouTube' event.

Logan's main coach for this fight was two-time heavyweight champion, Shannon Briggs while KSI trained under up-and-coming professional boxer and UK's top prospect Vidal Riley and Jeff Mayweather, uncle of Floyd Mayweather Jr.

The fight was attended by various celebrities such as Justin Bieber, Wiz Khalifa, Rick Ross, Lil Baby etc.

KSI won the fight via split decision and rejected the offer for the third fight thereby ending the rivalry and leaving victorious. 


Eurogamer Incident

KSI was banned for life from the Eurogamer Expo (known today as EGX) in 2012 due to allegedly verbally harassing attendees for one of his "awkward in public" videos, a series where he purposely used to be awkard while interacting with public to get a reaction out of them. After the incident, Microsoft cut all ties. KSI subsequently apologised "for any offence the video of 15 months ago may have caused in the short time it was on his YouTube channel, references to it since and subsequently used by other people" and stated his desire to move on from the incident and be "be judged on the great content and value he gives to brands and partners, without controversy.

Feud with Quadeca and Dax

KSI called out both Quadeca and Dax for being worse than him at rapping. Quadeca then responded with a full diss track called "Insecure" and Dax giving small hints at KSI in his track "Killshot Freestyle". KSI then replied with his disstrack called "Ares" dissing both Quadeca and Dax. Dax then later appeared in Deji's diss track against KSI called "Insecure" with the information given to him by Deji. However, KSI refused to make a diss track back at Deji and instead tried to solve the situation behind the scenes. 

KSI and Quadeca squashed their beef over a game of FIFA with both being interested to work with each other in music in the future. Miniminter later confirmed in his What's Good Podcast that the reason why KSI called out Quadeca in the first place was to make him famous, which he did. Quadeca then ended up being part of KSI's album "New Age" with the song "Roll the Dice" with Randolph, a song which Quadeca also performed live on the London show of KSI's New Age tour. 

Flying Dax to England to Fight

Flying Dax to England to Fight

However, KSI's beef with Dax continued on twitter after Dax made multiple tweets challenging KSI to a boxing match. KSI then responded in a video saying he is ready to fly Dax out from LA to London in a first class flight, pay for the 5 star hotel charges with an Addison Lee ready with Dax's name written on it just so he can spar him. After many back & forths, Dax backed out from having a spar with KSI and claimed in a podcast that he was only using KSI for clout. KSI still occasionally pokes fun at Dax in some of his second channel videos. 

Fall out with Deji and family

The beef between Deji and Randolph spilled over onto a brother beef between KSI and Deji when KSI reacted to both Randolph and Deji's diss track and affirmed the truth of Randolph's disses whilst going at Deji as well as his parents for exposing his private bank account. Deji then responded with a video saying that KSI had taken Randolph's side and it was an unfair beef as he felt outnumbered. Deji then went on saying that he never gotten a girl pregnant (something Randolph mentioned in his second diss track), but then commented that KSI had, giving even more bad vibes between them. The beef then escalated with Deji tweeting out that KSI had blocked him and KSI then tweeting "get rid of negative delusional people, even if they are family", although this was deleted shortly after.

Deji then made a full video calling out his brother for preferring his friends over family and calling his brother as having a god complex. KSI immediately tweeted that he loved his brother and made a video apologizing for certain things. Deji then uploaded a full diss track titled "Unforgivable", with Jallow, Dax, and Crypt. Some of the disses were calling out the fact that KSI had gotten a girl pregnant, though it was made before KSI's video apologizing to certain things, and Deji uploaded the diss track to keep things fair for the people featured in the diss track. The apologetic tweets and video by KSI were deleted shortly after. Deji then proceeded to go on the Logan Paul podcast (despite KSI telling him not to) and called KSI manipulative and his friends (Sidemen) fake and only having KSI's back on the surface, but not truly.

On Christmas day, KSI came to visit the family, which resulted in a fight between him and Deji. KSI claimed on Twitter that Deji kicked him out and his parents just stood there and watched, with Deji threatening to call the police, if he didn't leave. Deji tweeted that KSI wanted to smash his computer and make him delete the diss track. Deji later stated that KSI attacked their mum and insulted both of their parents.



Later that day, Deji made another video titled "My Bro", calling him a bully, manipulative, and attacking and making their parents cry, but the video was later deleted due to subscriber loss. As a result, Deji lost thousands of subscribers from the drama with his brother, due to him uploading more videos talking about the situation. KSI then finally responded to one of Deji's video and disproved disproved every point Deji made.

On January 6, 2019, Deji uploaded an apology video to KSI for his actions, and he deleted the "Unforgivable" diss track, thus "ending" the beef.

However, on May 2, 2019, the brother beef was reignited, when Deji made the diss track that was thought to be deleted, public again on YouTube.

On May 25, 2019, Deji released a video titled "bye.", where he explains all the problems he has with his brother, including violence in videos, KSI sleeping with a girl that Deji really liked, KSI taking Randolph's side over Deji's, during the Deji vs Randolph war, KSI giving Randolph sparring footage to embarrass Deji, KSI's behavior on Christmas, and sending hate towards Deji on KSI's channel, even though Deji asked KSI to not mention him anymore. Deji even talked about the suffering with the psychical abuse and the suicidal thoughts, as the result of the latest drama situation. KSI started to lose subscribers on both of his channels. KSI responded on Twitter saying he didn't care about the subscribers lost and asked his fans if they ever encountered Deji, to message him.

Ending it all

Ending it all

On June 3, 2019, KSI finally responded to Deji with a video titled "Ending it All". KSI debunked all of Deji's claims towards him and showed Deji's manipulation and hypocricsy, he did also apologize to Deji about violent videos and sleeping with the girl Deji had a crush on. The video caused Deji to lose subscribers and KSI started to regain his subscriber loss. The next day Deji uploaded a video titled "moving on", where Deji stated that the beef was "over" and that he would keep things private with his bro.

However, on June 18, 2019, Deji uploaded a video titled "i can't do this anymore", where he came forward and said he's suffering from mental health. He later has a mental breakdown and begs people to stop seeing him as a "bad guy". The next day Deji went live on twitch and told his viewers that he finally agreed to attend therapy with his bro and said he would take some time off the internet to focus on getting better mentally.

It is assumed that the fued was later solved behind the scenes after Deji voiced his support for KSI in the rematch against Logan Paul. 

Second Channel

KSI has two YouTube channels. His main channel is called 'KSI', which focuses on music, comedy, vlogs and boxing. His other channel is called 'KSIOlajidebtHD' where he used to post gameplay videos. He then stopped uploading on his second channel since February 14, 2017, but came back 2 years later and started to upload again on 31st Dec 2018.

However, he changed up his content when he came back and started doing mainly reaction commentary videos instead of just gaming. KSI's second channel is now known for his discord videos aka 'One Question Go' where few of his fans get a chance to ask him a question and reddit videos where KSI reacts to the memes posted by his fans on his subreddit.

New Age

On April 12, KSI released an album with his friend Randolph called "New Age". The album recieved positive reactions and charted no.3 on UK Official Billboard Charts, no.1 on UK iTunes, and no.1 on the Official R&B charts. One of the songs from the album - "Pull Up" made it to Spotify’s official “Hot Hits UK” playlist (the biggest UK playlist on Spotify) and debuted #94 on Uk's Official Billboard Charts
KSI performing on the New Age tour

KSI performing on stage on his tour

To promote the album, KSI and Randolph went on tour to in May-July across UK and Europe. They played most of the songs from the New Age Album, but also played alot of other songs from KSI's other albums like Space, and Disstracktions too.

During the tour, KSI mocked Logan on Twitter saying that Logan will never be able to do this while showing a video of the whole arena rapping KSI's song.
KSI tweets at Logan

The Sidemen

KSI helped form a group called the Sidemen alongside some of his closest friends. The group consists of 7 famous UK YouTubers - KSI, W2SMiniminter, Vikkstar123, Behzinga, Zerkaa, and TBJZL. They are all good friends who regularly make videos together and have created a commercial brand from their name.


Sidemen as a group uploads on two channels - Sidemen and MoreSidemen. From 2018, they have uploaded a video on every Sunday on the Sidemen channel under the banner of "Sidemen Sunday" which gets 7M-12M views per video on an average. They also post content 3 times a week on the MoreSidemen channel.

The group has also done a YouTube Original series consisting of 7 episodes that were uploaded on the Sidemen channel on 19th June 2018. Episode one is free to watch whereas the other 6 episodes are paid. 

Sidemen have also hosted their own events which includes three Charity Football Matches, two Upload Events and two boxing matches, all of which were massively successful.​​​​​​


KSI has a vast array of contacts and commonly collaborates with many YouTubers including:


  • KSI has nearly 30 million subscribers across his two channels - KSI and KSIOlajidebtHD V2.
  • In 2019, KSI was ranked the second richest youtuber in United Kingdom, after Pewdiepie, with an estimated net worth of £16 million ($21 million).[12]
  • KSI has collaborated with many celebrities in his videos, including Ryan Reynolds, Dwayne Johnson, Conor McGregor, Matt Damon, Tinie Tempah, Jamie Oliver, and Rio Ferdinand.
  • After becoming a particularly iconic figure in the British media industry, KSI has been invited to appear on numerous television shows, most recently on the comedy series 'Backchat', hosted by comedian Jack Whitehall. This special was broadcast on BBC Two on Boxing Day 2015.
  • Despite having back & forths with PewDiePie in the past, both KSI and PewDiePie have admitted in their videos that they respect each other. PewDiePie even said that he would love to have a beer with KSI if he meets him in person.
  • KSI was a shy person growing up.
  • KSI is the first British YouTuber and the first YouTuber of color to receive YouTube's Diamond Play Button.
  • KSI is the most subscribed YouTuber of color.
  • Since 2014, KSI had been the most subscribed British YouTuber, although DanTDM surpassed him briefly from January to February in 2018. KSI then re-surpassed him after his boxing match with Joe Weller but DanTDM surpassed him again in April 2018. The subscriber growth of KSI's main channel has since slowed down due to KSI not uploading on that channel but instead uploading on his second channel more often. KSI is currently the second-most subscribed YouTuber from the United Kingdom.
  • KSI's parents are Nigerian, but he considers himself to be British, as he has lived in England his whole life.
  • KSI took a hiatus in February 2017, when he stopped uploading videos for 5 months. KSI took a break again later that same year to train for his fight against Joe Weller. 
  • KSI once lost over 2 billion views by privatizing 1,000+ of his videos and took a break from YouTube. After his return, he made all his videos public again and gained all of his 2 billion views back.
  • In his "Googling Myself" video, KSI revealed that he is agnostic (believing that there is no proof of god's existence).
  • KSI is a fan of Arsenal F.C.
  • He met Cristiano Ronaldo and asked him why his free kicks were so consistent, Ronaldo replied with "Consistent ?".
  • KSI was the online face of Sports Relief in 2014.
  • KSI made the official music video of "Earthquake" private after RiceGum bet against him and said that Logan Paul would win the KSI vs Logan Paul rematch.
  • "JJ" has been speculated to stand for "Jide Junior", which is the name of his former channel.



  1. Olajide Olayinka Williams Olatunji. UK Companies House.
  2. Pronounced oh-la-JEE-day oh-la-TUHN-jee
  3. He has stated that "KSI" is an acronym for Knowledge, Strength, Integrity.
  4. Pronounced KSI oh-la-JEE-day BT
  5. Top 10 British YouTubers.
  6. See KSI's full discography
  7. See KSI's soundtrack
  8. See KSI's full filmography
  9. See KSI's publications
  10. See KSI's boxing record
  11. KSI Net Worth. Wealthy Gorilla.
  12. Britain's RICHEST YouTubers. Daily Mail UK.
Community content is available under CC-BY-SA unless otherwise noted.