More than 100 of the world’s top musicians will perform at a series of worldwide concerts this summer to highlight the threat of global warming.

The Red Hot Chili Peppers and the Black Eyed Peas will be among those taking part in the Live Earth gigs on 7 July.

The eight concerts were announced by ex-US Vice President Al Gore, whose global warming film An Inconvenient Truth is up for two Oscars.

Johannesburg, London, Shanghai and Sydney are among the host cities.

Keane, Snow Patrol, Duran Duran, Bloc Party and Paolo Nutini have all signed up to perform.

Live Earth