Backstreet Boys join Jimmy and The Roots to perform their hit "I Want It That Way" with classroom instruments. See the full instrument list below:

Brian Littrell - Vocals, Apple Shaker, Wood Block
Nick Carter - Vocals, Tambourine
Kevin Richardson - Vocals, Güiro
AJ McLean - Vocals, Maraca
Howie Dorough - Vocals, Coconuts
Jimmy Fallon - Vocals, Bass Drum, Casio Keyboard, Apple Shaker
Questlove - Hand clappers
Kamal Gray - Xylophone
James Poyser - Melodica
Captain Kirk - Ukulele
Tuba Gooding Jr. - Kazoo, Apple Shaker
Mark Kelley - Kazoo
Stro - Bongos
Black Thought - Triangle

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Jimmy Fallon, Backstreet Boys & The Roots Sing "I Want It That Way" (Classroom Instruments)