Al Gore Hangs With Cameron Diaz and Pharrell

The 24-hour event on July 7 is part of a kickoff campaign, Save Our Selves - The Campaign for a Climate in Crisis, that promoters hope will trigger a broad movement to address what the former vice president calls a "planetary emergency."

"We have to get the message of urgency and hope out," Gore said at a news conference, where he was flanked by actress Cameron Diaz, rapper Pharrell Williams and producer Kevin Wall.

More than 100 performers are scheduled to appear at the July concerts, including Etheridge, the Foo Fighters, Lenny Kravitz, Sheryl Crow, John Mayer, Duran Duran, Korn, the Black Eyed Peas, Akon, Enrique Iglesias, Faith Hill and Tim McGraw.

(WENN)

(WENN)

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