Apple has released an app called the iTunes Festival London 2011. The app will let you watch live performances from lots of bands; performing at the Roundhouse in London throughout July. The acts are all taking part in the official iTunes Festival and you can view it all for free on your iOS device.

The iTunes Festival is back with 31 consecutive nights of live music and more. The lineup includes Coldplay, Linkin Park, Foo Fighters, Paul Simon, Bruno Mars, Adele, My Chemical Romance, Duran Duran, Lang Lang and Moby — to name just a few of the great shows you can watch live on your iPhone, iPad, or iPod touch.

The iTunes Festival London 2011 app is completely free and works with iPhone, iPad and iPod touch; running iOS 4.1 and later. The app also supports AirPlay which enables you to stream the content to the big screen via the second generation Apple TV.

[Free – iTunes link]