Outside Lands 2011 Lineup: Arcade Fire, Muse and Phish Headlining

As if there weren't enough festivals already, San Francisco's Outside Lands in Golden Gate Park is shaping up to be one of the most exciting live events of the concert season. Fresh off their recent Grammy win, Arcade Fire will headline the festival alongside rockers Muse and jam-band stalwart Phish.

On top of those three, Beirut, Big Audio Dynamite, Toro y Moi, the Joy Formidable, Big Boi, STS9, Josh Ritter, the Roots, MGMT, John Fogerty, the Fresh and Onlys and the Decemberists will perform in the shadow of the Golden Gate Bridge.

Tickets for the three-day festival (August 12-14) go on sale April 14 at 12PM PT. Much of the proceeds will go directly to San Francisco's Recreation and Park Department. For more info and the full lineup, head to the festival's official site.

Arcade Fire Perform 'Ready to Start'