Global phenomenon BTS (방탄소년단) delivers a high-energy performance of "Idol" for a thrilled Tonight Show audience.Subscribe NOW to The Tonight Show Starring Jimmy Fallon: http://bit.ly/1nwT1aNWatch The Tonight Show Starring Jimmy Fallon Weeknights 11:35/10:35cGet more Jimmy Fallon:Follow Jimmy: http://Twitter.com/JimmyFallonLike Jimmy: https://Facebook.com/JimmyFallonGet more The Tonight Show Starring Jimmy Fallon:Follow The Tonight Show: http://Twitter.com/FallonTonightLike The Tonight Show: https://Facebook.com/FallonTonightThe Tonight Show Tumblr: http://fallontonight.tumblr.com/Get more NBC:NBC YouTube: http://bit.ly/1dM1qBHLike NBC: http://Facebook.com/NBCFollow NBC: http://Twitter.com/NBCNBC Tumblr: http://nbctv.tumblr.com/NBC Google+: https://plus.google.com/+NBC/postsThe 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.BTS Performs "Idol" on The Tonight Showhttp://www.youtube.com/fallontonight#BTS#BTSOnFallon#Idol