Get Katy Perry's smash hits Firework and E.T. for free in this all-new app sponsored by Bing. Plus check out tour info, and follow Katy's tweets from in the app.
Hungry for more? Get the premium version of KATY PERRY REVENGE! The premium app includes the hit songs:
The Katy Perry Revenge premium app was:
** The #1 music game on the US App Store
** A Top 50 App on the US App Store