In pictures: Backstage at Live Earth

The aim was to raise awareness about climate change. 70,000 turned out at Wembley Stadium to watch the likes of Madonna, The Foo Fighters and Keane on stage. We catch some of the stars behind the scenes.

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Dave Grohl from the Foo Fighters. His band played second on the bill before Madonna: "I'd like to think of it as the Pussycat Dolls were opening up for us. I never imagined we'd be on just before Madonna."