Metallica joins Jimmy and The Roots in the Tonight Show Music Room to perform "Enter Sandman" with classroom instruments.Instrument list below:James Hetfield - Vocals, Toy clarinetJimmy Fallon - Vocals, Bass Drum, Casio Keyboard, KazooLars Ulrich - Fisher Price Drum, Toy CymbalsKirk Hammett - MelodicaRobert Trujillo - Baby Electric AxeQuestlove - Hand Clappers, KazooKamal Gray - XylophoneJames Poyser - MelodicaCaptain Kirk - UkuleleTuba Gooding Jr. - Kazoo, Banana Shaker, Apple ShakerMark Kelley - KazooFrank Knuckles - BongosBlack Thought - Tambourine, Brown HatSubscribe 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.Jimmy Fallon, Metallica & The Roots Sing "Enter Sandman" (Classroom Instruments)http://www.youtube.com/fallontonight