From £1,500 a Month at School to a Billion-Dollar Drink

KSI posted a video called "I'm Leaving the Sidemen" in 2017. Nine years later, he posted one with the same title. This is the story in between. Olajide Olatunji's backstory in 15 minutes: the kid from Watford who failed his exams, the £1,500 a month that made a teacher's salary look small, FIFA videos, the Machinima contract he wanted out of, the Sidemen, the Weller and Logan Paul fights, a UK number one album, Prime, the charity matches at Wembley, and why he walked away a second time. The money numbers are labelled for what they are: Forbes estimates, a reported Bloomberg projection and a Sunday Times estimate, not guesses. CHAPTERS 00:00 Leaving the Sidemen, again 00:49 The kid from Watford 02:46 The gold mine 04:17 The part he'd rather you skipped 05:22 Seven friends and a camera 07:41 The fights 09:38 The drink 12:02 The fall, and the match 13:40 The second goodbye Subscribe to The Backstory for the stories behind the internet's biggest names. #KSI #Sidemen #TheBackstory