Entertainer KSI Height Weight Body Statistics


Born Name

Olajide William Olatunji

Nick Name


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

Sun Sign


Born Place

Watford, Hertfordshire, Southern England, UK


London, England




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

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


Video game commentator, YouTuber / Entertainer, Rapper, Actor, Comedian, 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)



British Hip-Hop, Grime




  • Island Records
  • Dcypha Productions




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.

A post shared by K.S.I (@ksi) on

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
  • 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 at 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.

A post shared by K.S.I (@ksi) on

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 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 the 7 Sidemen members have become big names in the gaming industry and host their own high profile events.
  12. To find out more about KSI, visit his official website @ ksiofficial.com.
  13. Follow him on Facebook, Twitter, and Instagram.

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


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