HomeStatisticsOthersKSI (Olajide Olatunji) Height, Weight, Age, Body Statistics

KSI (Olajide Olatunji) Height, Weight, Age, Body Statistics

KSI (Olajide Olatunji) Quick Info
Height 5 ft 10 in
Weight 74 kg
Date of Birth June 19, 1993
Zodiac Sign Gemini
Eye Color Dark Brown

KSI is an English YouTuber, internet personality, singer, musician, video game commentator, entertainer, rapper, actor, comedian, and professional boxer who is the founder of the streetwear clothing brand BEAST Worldwide. He has emerged as one of the most successful online personalities of his time and was ranked 2nd by The Sunday Times in its list of the top 100 UK influencers. He has also been a member of the YouTube collective named Sidemen as well as branched out as a musician, releasing albums, extended plays, and songs like DissimulationJump AroundKeep Up, Friends with Benefits (with MNDM), Jump Around (ft. Waka Flocka Flame), Really Love (ft. Craig David and Digital Farm Animals), Poppin (ft. Lil Pump and Smokepurpp), Lamborghini (ft. P Money), and Don’t Play (with Anne-Marie and Digital Farm Animals).

Born Name

Olajide Olayinka Williams Olatunji

Nick Name

JJ, KSI, The Nightmare

KSI as seen in January 2016
KSI as seen in January 2016

Sun Sign


Born Place

Watford, Hertfordshire, Southern England, United Kingdom


London, England, United Kingdom





He studied in a private institution in Hertfordshire called Berkhamsted School. Within the next couple of years, he became so engrossed in promoting his persona on the internet that he failed his A-Levels equivalent to grade 12 exams.

His parents were extremely unhappy with his disinterest in conventional education and asked him to enroll in the two-year International Baccalaureate Diploma Program which is another route to qualify for a college education.

After a year of convincing his parents and teachers that classroom education was not for him and that he was doing exceedingly well on YouTube, JJ finally dropped out in the 2nd year to work full time on his gaming channel on YouTube.


Internet Personality, Video Game Commentator, YouTuber, Entertainer, Singer, Musician, Rapper, Actor, Comedian, Professional Boxer, Founder of Street Wear Clothing brand BEAST Worldwide


  • Father – Olajide Olatunji Sr aka Jide
  • Mother – Yinka Olatunji
  • SiblingsDeji Olatunji aka Comedy Shorts Gamer (Younger Brother) (YouTuber, Entertainer)


KSI has been signed with –

  • OP Talent Management acquired by Endemol Shine Group
  • Stuart Jones, Upload Agency, United Kingdom


Music – British Hip-Hop, Grime

YouTube – Entertainment, Association Football, Comedy, Gaming, Music




  • Island Records
  • Dcypha Productions

Boxing Weight


Boxing Stance


Boxing Reach

76 in or 193 cm

Net Worth

In 2023, his net worth was $35 million according to




5 ft 10 in or 178 cm


74 kg or 163 lbs

Girlfriend / Spouse

KSI has dated –

  1. Seana Cuthbert (2012–2014) – When JJ hit the peak of his YouTube content creation, his girlfriend Seana was frequently featured in some of his videos and the two frequently mentioned each other in their social media posts. After about 2 years of dating, KSI confessed in a ‘Googling Myself’ video that he was not dating Seana anymore but they parted ways on a friendly note.
  2. Lois Sharpie (2017) – In July 2017, he started going out with Lois Sharpie but their relationship soon fell apart and they parted ways after only a few months in November 2017.
  3. Nia Pickering (2018-2019) – KSI began dating social media personality, YouTuber, and content creator Nia Pickering in 2018. However, they broke up the following year.

Race / Ethnicity


He has African American and Nigerian ancestry.

Hair Color


Eye Color

Dark Brown

Sexual Orientation


Distinctive Features

  • Big, wide nose
  • Shows a range of comical expressions
  • A loud, shrill laugh

Brand Endorsements

  • KSI has reviewed and promoted countless video games on his gaming channel KSIolajidebt.
  • He is closely associated with London-based YouTube sports channel Rule’M Sports and collaborates with several other influencers and celebrities to put together promotional videos.
  • He refuses 80% of the endorsement ideas offered to him to implement on his YouTube channels. However, KFC is one popular brand he does not mind endorsing because he loves chicken.
  • Most brands have stealth placement in JJ’s vlogs and sketches with the most obvious endorsement reserved for his streetwear line Beast Worldwide and his music videos.


He is Agnostic, although his parents follow Christianity.

Best Known For

His prank videos and recorded play of FIFA video game accompanied by his commentary in the background that matches his game.

As a Singer

  • Lamborghini (2015) featuring P Money was his first single that peaked at #30 on the UK singles chart and #7 on the UK R&B chart.
  • An EP titled Keep Up (2016) with 5 tracks was his first album.

First Film

He made his theatrical film debut as Duncan in a direct-to-video comedy Laid in America (September 2016) that featured several other popular YouTubers including his younger brother, Deji.

First TV Show

KSI was cast as Matt Clark in the five-episode TV series called 5 Aside (2014).

Personal Trainer

  • JJ was featured in Rugby player James Haskell’s workout videos to demonstrate elements of strength training and promote his channel.
  • He developed a feud with fellow YouTuber, Joe Weller and to take their rivalry to the next level for public entertainment, both of them were signed to fight an actual boxing match in February 2018.
  • That deal made KSI take fitness seriously and alongside fundamental strength training exercises, his daily regimen switched to a lot of boxing and sparring sessions in 2017.
  • His dietary habits are not known but he eats wholesome meals at some of the best eating joints in London. He dislikes the fancy restaurants that serve meager portions of food.

KSI Favorite Things

  • Gaming Console – PlayStation 4 (stated in 2015)
  • Rapper Drake
  • Non Alcoholic Drink – Red Bull
  • Food Combination – Cheese, Grapes, and Crackers
  • Burger – McDonald’s
  • Chicken Wings – Nando’s
  • Football Team – Arsenal FC

Source YouTube, YouTube, NME, YouTube

KSI Facts

  1. KSI could not start a YouTube channel simply using his first name, Olajide because that username was already taken. Hence, he added a pre-fix KSI inspired by a Halo gaming clan. It refers to Knowledge, Strength, and Integrity. He added a suffix BT to his username which stands for British Telecom.
  2. He made his first-ever YouTube video in 2008 (at the age of 15) as a part of a school project.
  3. JJ started the channel responsible for his current income stream in July 2009 that has gained billions of views.
  4. He is listed in the Guinness Book of World Records Gamer’s Edition for the highest number of FIFA video game goals scored against a computer which were 190 in total set in February 2013.
  5. He purchased his first car at the age of 19 which was a Tron-themed purple Lamborghini Aventador.
  6. JJ purchased his parents’ old home from them and rented it out for additional income. He gifted them a brand new home as payback for years of hard work, they put in to raise him. In fact, he even made his father retire prematurely from his job.
  7. His longest gaming session was playing FIFA for 32 hours straight without a break.
  8. JJ is a published author and released a book titled, KSI: I Am A Bellend (2015) in the UK and KSI: I Am A Tool (2015) in the USA, which discusses some of the mistakes he made while becoming a bigger name as an Influencer and also offers some tips to follow his footsteps.
  9. He says it does not matter how saturated the social media space becomes, gaining a large following depends upon having a memorable personality.
  10. He is particularly known for his crude, sexual humor such as making a ‘rape face’ that is often perceived as sexist behavior by some people. Microsoft cut ties with him for the same reason and it also led to his life ban from the Eurogamer Expo.
  11. With his friend Simon, JJ went on to create a gaming group called Sidemen in 2013 which was a collaboration of all gaming YouTubers to gain a larger following. All 7 Sidemen members have become big names in the gaming industry and host their own high-profile events.
  12. His fellow Sidemen groupmates have been Miniminter, Zerkaa, TBJZL, Behzinga, Vikkstar123, and W2S.
  13. In December 2020, he expressed his interest in a fight between Logan Paul and Floyd Mayweather (which was scheduled to happen in February 2021) that he wanted Logan Paul to win in that fight.
  14. In February 2021, he launched his own record label The Online Takeover.
  15. In February 2021, he was banned from YouTube for almost a week after uploading a video titled Try not to laugh: Indian Edition which had included an alleged instance of “child endangerment”.
  16. In March 2021, KSI announced that he was quitting Twitter because of the backlash that he received after being accused of using transphobic language. However, he returned to the platform after almost a week.
  17. In March 2021, KSI expressed his interest in the boxing match which was scheduled to happen between Jake Paul and Ben Askren on April 17, 2021. KSI wanted Ben to beat Jake in that match. However, Jake had won that match by TKO in the very first round.
  18. In April 2021, after Ben Askren vs Jake Paul’s fight, KSI expressed his interest to fight Jake Paul.
  19. In June 2021, KSI had launched his own boxing promotion company in partnership with Wasserman Boxing in order to stage celebrity crossover events.
  20. In July 2021, KSI roasted Adam Saleh after his draw in a boxing match against 17-year-old Walid Sharks during the June 30, 2021, Social Knockout boxing event.
  21. On June 8, 2021, KSI’s secondary YouTube channel titled JJ Olatunji got a channel strike for a child safety violation. The same channel got its 2nd channel strike on August 13, 2021, because of the child safety reason for another video.
  22. In January 2022, KSI and YouTuber Logan Paul joined hands to launch a sports drink called Prime Hydration which took them 6 months to create. The drink is in competition with Pepsi, Coca-Cola, Gatorade, and Powerade.
  23. In the entire 2021, KSI had lost an insane $5.1 million in cryptocurrency trading on
  24. In May 2022, KSI revealed that his $2.8 million worth of LUNA (a type of cryptocurrency) was reduced to just $1000 after the currency crashed.
  25. In 2022, KSI and Logan Paul’s PRIME Hydration drink became the first influencer brand to sponsor a NASCAR team.
  26. Social media personality IShowSpeed had leaked the personal phone number of KSI during an online stream in July 2022 due to which KSI’s phone kept ringing.
  27. On January 14, 2023, KSI won by KO (knockout) against eSports gamer Faze Temperrr in a crossover boxing bout which he won in the first round.
  28. In 2020, he had over 10 properties in England with a combined net worth of over £10 million. At that time, his earnings were estimated at £12 million a year.

Featured Image by Tralsatre / Wikimedia / CC BY-SA 4.0

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