California Gurl hits the App Store.
Disney subsidiary Tapulous has launched its latest premium Tap Tap Revenge music game for iPhone - Katy Perry Revenge.
The game features ten of Perry's hits to tap along to, including California Gurls, I Kissed a Girl and Hot N Cold.
It also offers news, photos, chatrooms and Facebook Connect functionality so players can post scores to the social network.
The $4.99 game is launching the same week that Perry's new album is released.
"Katy Perry is one of the most popular artists on the planet right now and this app creates an entirely new and fun way for her millions of fans to enjoy Katy’s music," says Tim O'Brien, VP of business development at Disney Mobile.
Last month, Disney acquired Tapulous, after the latter built a 35-million-strong community for its Tap Tap Revenge games.
Perry was actually one of the first artists to do a deal with Tapulous, after her label EMI made Hot N Cold available as a free download for the original Tap Tap Revenge.
The track was downloaded more than 250,000 times then, with more than 56,000 people clicking through to iTunes to buy the actual song.