KSI

British YouTube personality, rapper, actor, and boxer (born 1993)

Audience24.8M
Fame87.6
Momentum22.6

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Source-basedBreakout

24.8M youtube followers

Audience24.8M
Fame87.6
Momentum22.6
Global rank#62
United Kingdom rank#24
YouTubers rank#5

Born 1993 · age 33United Kingdom

United Kingdom

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Biggest on YouTube
24.8M
@@ksiofficialmusic
Wikipedia
41 languages
Cross-language footprint
Global rank
#62
Fame.am leaderboard
Age
33
Born 1993
Known for
Laid in America
2016

Summary

Updated 2026-06-19

Olajide Olayinka Williams "JJ" Olatunji, known professionally as KSI, is a British influencer, musician, and former professional boxer. He is a co-founder and former member of 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 2025.