KSI

This page or section needs to be cleaned up. Please help clean the page if you can. For tips on making this article better, read "How to edit a page" and "How to write Simple English pages".

This short article about a person or group of people can be made longer. You can help Wikipedia by adding to it.

KSI
KSI in 2024
Born	Olajide Olayinka Williams Olatunji (1993-06-19) 19 June 1993 (age 33) London, England
Education	Berkhamsted School
Occupations	YouTuber streamer rapper influencer boxer actor entrepreneur
Title	Founder and co-owner of Prime, Lunchly, XIX Vodka, Sidemen Clothing, Sides and Best Breakfasts Co-founder of Misfits Boxing
YouTube information
Channel	KSI
Years active	2009–present
Genres	Entertainment association football comedy gaming music
Subscribers	25 million (main channel) 44.97 million (combined)
Views	6.2 billion (main channel) 14.98 billion (combined)
Musical career
Genres	British hip hop trap pop garage
Years active	2015–present
Labels	Atlantic Warner Music Group RBC/BMG Island Dcypha
Boxing career
Other names	The Nightmare
Statistics
Weight(s)	Cruiserweight
Height	6 ft 0 in (183 cm)
Reach	76 in (193 cm)
Stance	Orthodox
Boxing record
Total fights	6
Wins	4
Wins by KO	3
Losses	1
No contests	1
KSI's voice With Gymshark Recorded November 2020
Last updated: 3 July 2025
Signature

Olajide Olayinka Williams "JJ" Olatunji (pronunciation^ⓘ born 19 June 1993), known professionally as KSI, is a British influencer, musician, and former professional boxer.

He is a co-founding member of the YouTube group the Sidemen, the co-founder of Misfits Boxing and co-owner of several businesses, including Prime Hydration and Lunchly. KSI has also served as a judge on Britain's Got Talent since 2026.

He was involved in a white-collar boxing match against Joe Weller in February 2018. Two further boxing events against American YouTuber Logan Paul took place, the second of which was a professional bout in which he won via split decision in November 2019.

In August 2022, he fought two people in the same night, defeating rapper Swarmz and professional boxer Luis Alcaraz Pineda.

In 2023, he fought FaZe Temperrr in January, Joe Fournier in May, and Tommy Fury in October, which he lost via unanimous decision.

References

1. ↑ Subscribers, broken down by channel:
   • 25 million (KSI Music)
   • 16.5 million (KSI)
   • 3.37 million (KSIClips)
   • 109 thousand (JideJunior)
2. ↑ Views, broken down by channel:
   • 6.26 billion (KSI Music)
   • 4.54 billion (KSI)
   • 4.18 billion (KSIClips)
   • 1.35 million (JideJunior)
3. ↑ JJ is an abbreviation of "Jide Junior"—Jide is a hypocorism of KSI's first name, Olajide.
4. ↑ KSI is an abbreviation for "Knowledge Strength Integrity", which was derived from a clan he was a member of in the video game series Halo. His initial alias was KSIOlajidebt, a compound of "KSI", his forename, and the initials of British Telecom.