Olajide “JJ” Olatunji, better known as KSI, is a British YouTube star, rapper, boxer, actor and co-founder of the entertainment collective known as the Sidemen. He was born and raised in Watford, Hertfordshire, England. His main channel is called “KSI,” which is now his official artist channel. His name is short for his YouTube channel name KSIOlajideBT, which derives from “KSI” (a Halo clan), also meaning knowledge, strength, and integrity, his name, and “BT,” meaning “British Telecom.”
KSI started doing YouTube in 2010 and has now grown to be one of the most subscribed YouTubers in the world. Apart from being a YouTube sensation, he has also become an artist. His main channel makes him rank among the top 30 most subscribed music artists in the world.
Back in the day when KSI started doing YouTube, he was already making songs in his videos. The first song he did was his Call of Duty 1v5 Rap He had only 50 subscribers at the time.