KSI has caused a stir after announcing he is leaving the YouTube collective Sidemen, with fans wondering what comes next for the social media stars. Some questioned whether the news is a hoax or a forfeit, but a spokesperson for KSI has confirmed he is really leaving the group. And since their formation 13 years ago, the group has been on quite a journey. Tap the link in BBCNews's bio to read more about KSI's exit from the Sidemen. (📷 Getty, Sidemen) #Sidemen #KSI #BBCNews