Sarah McLachlan will release the first best-of collection

Prince surprised the sold-out crowd at Coachella tonight with a cover of Radiohead's 'Creep', plus The Beatles and Sarah McLachlan covers, as well as a a mind-blowing selection of his greatest hits.

Sarah McLachlan will release Rarities, B-Sides 2 And Other Stuff, Volume 2 on April 29th, 2008.

Madonna has teamed up with Annie Lennox on Lennox's new album, Songs Of Mass Destruction. Madonna features as part of a chorus of female singers on the track "Sing," which also includes Sarah McLachlan, Dido, Celine Dion, Faith Hill, Shakira, Bonnie Raitt, Gladys Knight, Pink, Fergie, Melissa Etheridge, and KT Tunstall.