Our first ever celebrity guest is behind the Mystery Door and who better than the king of YouTube himself, it's KSI! Ahead of his first series as a full time judge on Britain's Got Talent, KSI pops in for a chat. Things rapidly descend into chaos after the boys take on a head to head challenge - warning: Dec gets punchy... We'll be back on Thursday, but until then, keep your correspondence coming to [email protected] ----- 00:00 - Welcome to the Hang Out 03:53 - This week’s Mystery guest is KSI! 05:24 - Getting to know KSI 06:39 - Ant & Dec to join the Sidemen? 07:30 - KSI shares advice on how to go viral 10:30 - This years Britain’s Got Talent is the best yet! 11:20 - Simon Cowell never repeats his critiques 14:35 - KSI’s first Boxing match 18:00 - ‘Who’s comment is it?’ 25:25 - Ant’s wears KSI’s bandana 27:00 - Ant vs KSI vs Dec Boxing 28:50 - Ant is on the floor 29:40 - Dec’s turn 30:30 - KSI loves getting punched Learn more about your ad choices. Visit podcastchoices.com/adchoices