Thanks to a collaboration with usTwo, Simon's Cat has got its very own iPhone app called "Purrfect Pitch".

"Purrfect Pitch is a creative musical app and a game. The creative mode allows you to compose your own tunes, save them, and then watch as Simon's Cat sings them back. The game mode sees you taking on the cat himself, as he tests your ability to follow his lead in a series of increasingly difficult musical challenges", goes the blurb.

Available now from the App Store, Purrfect Pitch costs £1.19 and requires the iPhone 3.0 software. Hit play on the video above for a demo.