The Most SURPRISING Audition of The Season | Britain's Got Talent

In one of the funniest moments of the season, YouTuber DEJI teams up with the BGT judges to pull off the ultimate prank on his brother, KSI. KSI thinks he's there to watch DEJI in a serious audition, but he has no idea it's all an elaborate setup. Watch the hilarious reveal and KSI's priceless reaction!