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KSI Birthday and Biography


Born:   June 19, 1993

Place of Birth:   Watford, Hertfordshire, England

Zodiac Sign:  Gemini

Olajide Olayinka Williams "JJ" Olatunji (/ɒləˈdʒiːdeɪ ɒləˈtundʒiː/, oh-lah-JEE-day oh-lah-TUHN-jee), better known as KSI, is an English YouTuber, rapper, and professional boxer. In 2019, he was ranked second by The Sunday Times in its list of the top 100 UK influencers. He is also part of the British YouTube group known as the Sidemen.

​KSI registered his main YouTube account in 2009 and built a following posting gaming-commentary videos of the FIFA series. As his fan base has grown, his YouTube content has diversified to include vlogs and comedy-style videos. As of March 2021, he has over 34 million subscribers and over 8 billion video views across his two YouTube channels.

KSI's 2020 debut album, Dissimulation, debuted at number 2 on the UK Albums Chart. He has achieved eleven top 40 singles on the UK Singles Chart, six ending in the Top 10 and four ending in the Top 5. KSI featured in the British comedy film Laid in America (2016) and was the subject of KSI: Can't Lose (2018), a documentary film following the build-up to his first amateur boxing fight against British YouTuber Joe Weller. He participated in two other boxing events against American YouTuber Logan Paul, the second of which was a professional bout.