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!

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- I Kissed a Girl
- Hot N Cold
- California Gurls
- Waking Up In Vegas
- Teenage Dream
Plus more!

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