The day has finally arrived! Many of the previously rumored headlining artists we’re included in today’s lineup but there were plenty of surprises. Check out the full lineup below, who are you excited to see?

Muse, Phish (2 sets), Arcade Fire, The Black Keys, Deadmau5, MGMT, Girl Talk, The Decemberists, John Fogerty, Erykah Badu, The Original Meters, Beirut, The Roots, Arctic Monkeys, Big Audio Dynamite, STS9, Warren Haynes Band, Big Boi
Major Lazer, Little Dragon, Julieta Venegas, Sia, OK Go, The Greyboy Allstars, Josh Ritter & The Royal City Band, Old 97’s, Mavis Staples, !!!, Latyrx feat. Lyrics Born & Lateef, Best Coast, Collie Buddz, Phantogram, Charles Bradley, Foster The People, Lotus, STRFKR, Junip, Pajama Party, The Infamous Stringdusters, The Vaccines, Toro Y Moi, Vetiver, The Limousines, Macklemore & Ryan Lewis, The Stone Foxes, The Joy Formidable, Wye Oak, Ana Tijoux, Orgone, Lord Huron, Tamaryn, Grouplove, The Fresh & Onlys, Ximena Sariñana, Ty Segall, Sunbirds, Nicki Bluhm & The Gramblers, Diego’s Umbrella, Ghost Robot…

For the most up-to-the-minute updates to the lineup follow Ranger Dave on Twitter.

The 4th Annual SF Outside Lands Festival takes place at Golden Gate Park August 12 – 14, 2011.

Tickets on sale Thursday April 14th at noon here.