Check out this awesome video of Katy Perry performing her hit ‘Roar’ with Tegan and Sara, Sara Bareilles, Kacey Musgraves,Ellie Goulding & Bonnie Mckee.
The performance was done for The #WeCanSurvive Benefit Concert at the Hollywood Bowl 10/24/13[youtube id=”-NuRreRk6Bs” width=”620″ height=”360″]
