[VIDEO] Justin Bieber’s “Tonight Show” Drum-Off

Justin Bieber paid a visit to "The Tonight Show" to promote his upcoming album. But also had some unfinished business with The Roots' Questlove, who beat him in a drum-off back in 2010.

Say what you want about The Biebs--I've criticized him for years--but he seems to have matured and the dude definitely has some musical chops.

Oh...and he also performed "What Do You Mean?" WITH The Roots:

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