Justin Bieber talks to Jimmy about the emotions that led to his tearful 2015 MTV Video Music Awards performance.
Music guest Justin Bieber performs "What Do You Mean?" for the Tonight Show audience.
Justin Bieber and The Root's Questlove have a rematch of their 2010 Late Night with Jimmy Fallon drum battle.
Jimmy chats with a special member of the audience and asks The Roots to improv songs about him on the spot.
Justin Bieber explains how Skrillex transformed his vocals into an ear-wormy Easter egg in the hook of "Where Are Ü Now."