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Adam Horvitz of the Beastie Boys -- performing at the Live Earth concert at Wembley stadium in London, 07 July 2007.
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Adam Horvitz, (L) Mike Diamond (C) and Adam Yauch of the Beastie Boys -- performing at the Live Earth concert at Wembley stadium in London, 07 July 2007.
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Musician Jack Johnson poses backstage with a signed Live Earth guitar at the Australian leg of the Live Earth series of concerts, at Aussie Stadium, Moore Park on July 7, 2007 in Sydney, Australia.
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Jack Johnson performs on stage at the Australian leg of the Live Earth series of concerts, at Aussie Stadium, Moore Park on July 7, 2007 in Sydney, Australia.
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Jack Johnson performs on stage at the Australian leg of the Live Earth series of concerts, at Aussie Stadium, Moore Park on July 7, 2007 in Sydney, Australia.
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Jack Johnson performs on stage at the Australian leg of the Live Earth series of concerts, at Aussie Stadium, Moore Park on July 7, 2007 in Sydney, Australia.
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Bloc Party (L-R) Matt Tong, Gordon Moakes, Russell Lissack and Kele Okereke pose backstage during the Live Earth concert at Wembley Stadium on July 7, 2007 in London, England.
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Brazilian singer Xuxa performs during the opening of the Live Earth concert in Rio de Janeiro 07 July, 2007, at the Copacabana beach.
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Pharrell performs at Live Earth at Copacabana beach, 2007 Rio de Janeiro
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Al Gore on stage at the New York Live Earth concert.
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Dave Grohl of Foo Fighters performs on stage during the Live Earth concert at Wembley Stadium on July 7, 2007 in London, England.
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Dave Grohl of Foo Fighters performs on stage during the Live Earth concert at Wembley Stadium on July 7, 2007 in London, England.
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Drummer Adam Carson and singer Davey Havok of "AFI" perform onstage during Live Earth New York at Giants Stadium on July 7, 2007 in East Rutherford, New Jersey.
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Sting and the Police perform during the Live Earth concert 07 July 2007 in Giants Stadium in East Rutherford, New Jersey.
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Adam Horvitz (L) and Adam Yauch of the Beastie Boys -- performing at the Live Earth concert at Wembley stadium in London, 07 July 2007.
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Cameron Diaz and Al Gore on stage at the New York Live Earth concert.
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The Police performs during the Live Earth concert 07 July 2007 in Giants Stadium in East Rutherford, New Jersey.
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