Watch Katy Perry and Some of the Biggest Female Names in Music Perform 'Roar' Together [VIDEO]

Last night, Katy Perry and some of the biggest female names in pop music performed at the Hollywood Bowl in Los Angeles for a breast cancer awareness concert, We Can Survive: Music For Life. The epic night, which included sets from Kacey Musgraves, Tegan and Sara and Ellie Goulding in addition to Perry concluded with all the female performers of the night banding together and rocking out to a splendid rendition of Perry's smash Prism hit "Roar." Read More »