KSI: I’ve always wanted to prove people wrong

Available for over a year

YouTube sensation KSI - whose videos have been viewed over six billion times - has recently reinvented himself as a professional boxer and a rapper. He says he believes in himself and loves proving people wrong but as a teenager, commentating on FIFA in his bedroom, he was "unfit and introverted". To achieve as much as he has since starting out proves "literally anyone can do it".