Justin Bieber, Demi Lovato, Jason Mraz

Jun 09, 2014 on MTV at 12:00 AM

Summary

Contestants sing their best versions of Justin Bieber, Demi Lovato and Jason Mraz.

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Lady Gaga, John Mayer, and Robin Thicke
Season 1 Episode 9

Jun 09, 2014

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Robin Thicke, Sara Bareilles, and Ne-Yo
Season 1 Episode 11

Jun 10, 2014