Following in the footsteps of "Guitar Hero" and "Rock Band," the mobile music simulation game TapTap Revenge is driving music sales for artists licensing tracks to the game.

In a recent Christian Science Monitor story, the head of business development for the game's developer, Tapulous, said more than 250,000 users added the track "Hot N Cold" by Katy Perry to the game, and more than 56,000 ended up buying the song from iTunes as a result.

How he reached those figures is unclear. The game was created for the iPhone and the iPod Touch, both of which feature wireless connections to the iTunes store. The company recently added $1 million in new venture funding.

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- EMI Licenses Artists for TapTap Revenge