Taylor Swift and Jimmy compete as they try to guess random songs The Roots are playing one instrument at a time, like Taylor Swift’s own "Shake It Off.” Subscribe NOW to The Tonight Show Starring Jimmy Fallon: Watch The Tonight Show Starring Jimmy Fallon Weeknights 11:35/10:35c Get more The Tonight Show Starring Jimmy Fallon: JIMMY FALLON ON SOCIAL Follow Jimmy: Like Jimmy: Follow Jimmy: THE TONIGHT SHOW ON SOCIAL Follow The Tonight Show: Like The Tonight Show: Follow The Tonight Show: Tonight Show Tumblr: The Tonight Show Starring Jimmy Fallon features hilarious highlights from the show, including comedy sketches, music parodies, celebrity interviews, ridiculous games, and, of course, Jimmy's Thank You Notes and hashtags! You'll also find behind the scenes videos and other great web exclusives. GET MORE NBC NBC YouTube: Like NBC: Follow NBC: NBC Instagram: NBC Tumblr: Name That Song Challenge with Taylor Swift #FallonTonight #TaylorSwift #JimmyFallon