Kanye and John Legend will be performing at concerts for Live Earth on Saturday.

The concerts, which aim to stop global warming, are taking place around the world and will be broadcast live on TV and the internet.

John Legend will be performing at the concert in the UK, along with The Red Hot Chili Peppers, Madonna, Black Eyed Peas, and many other artists, while Kanye will be performing at the U.S. concert which will also include performances from Ludacris, John Mayer and Fall-out boy.

For more information:
http://www.liveearth.org/
http://en.wikipedia.org/wiki/Live_Earth
http://liveearth.msn.com/