Beck, Wilco, Widespread Panic and Primus lead the new additions to the lineup for the first Outside Lands festival, which will be held Aug. 22-24 at San Francisco's Golden Gate Park. As previously reported, Radiohead, Tom Petty and Jack Johnson will headline.

Outside Lands will also feature performances from Manu Chao, Ben Harper, Steve Winwood, Broken Social Scene, Galactic, Rodrigo y Gabriela, Sharon Jones and the Dap-Kings, Black Mountain, Drive-By Truckers, Cafe Tacuba and Devendra Banhart.

Regina Spektor, Cold War Kids, Lyrics Born, Andrew Bird, Steel Pulse, M. Ward, Dredg, the Cool Kids, Grace Potter, Nellie McKay, the Coup and Bon Iver will also perform.

Tickets for Outside Lands go on sale March 30. The event is being produced by Superfly Productions, Another Planet Entertainment and Star Hill Presents, in cooperation with the San Francisco Recreation & Park Department.