KSI Biography
Olajide Olayinka Williams "JJ" Olatunji, better known as KSI, is an English YouTuber, internet personality, musician, and boxer. He is also part of the British YouTube group known as the Sidemen. In 2019, he was ranked second by The Sunday Times in its list of the top 100 UK influencers.
KSI registered his main YouTube account in 2009 and built a following posting gaming-commentary videos of the FIFA video game series. As his fan base has grown, his YouTube content has diversified to include vlog and comedy style videos.
