Meghan Trainor stops by the Tonight Show Music Room to perform "All About That Bass."

Jimmy Fallon wood block, bass drum, Casio keyboard
Meghan Trainor vocals, triangle
Questlove hand clappers
Mark Kelley kazoo
Kamal Gray xylophone
James Poyser melodica
Captain Kirk ukulele
Frank Knuckles bongos
Tuba Gooding Jr. kazoo, apple shaker, banana shaker
Black Thought tambourine

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Jimmy Fallon, Meghan Trainor & The Roots Sing "All About That Bass" (w/ Classroom Instruments)
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