Beck, Devo (replacement headliner for The Black Crowes), Justice, Sound Tribe Sector 9, Michael Franti & Spearhead, The National, Spoon, Nortec Collective presents Bostich + Fussible, TV on the Radio, Cat Power, Hot Chip, Tegan and Sara, The New Pornographers, X, Vampire Weekend, Atmosphere, The Hives, Cold War Kids, GZA, Diplo, Ghostland Observatory, Spiritualized, Antibalas, Man Man, The Mother Hips, Tokyo Police Club, DeVotchKa, The Night Marchers, Does It Offend You, Yeah?, Del The Funky Homosapien, Eagles of Death Metal, The Muslims, Dengue Fever, MGMT, The Whigs, The Films, Foals, West Indian Girl, and Chester French. The Black Eyed Peas, M.I.A, Public Enemy, Thievery Corporation, Modest Mouse, The Dead Weather, Silversun Pickups, Cake, Conor Oberst and the Mystic Valley Band, of Montreal, Band of Horses, The Faint, Bassnectar, Girl Talk, Busta Rhymes, Sharon Jones & The Dap-Kings, Chromeo, Cage the Elephant, Donald Glaude, Ted Leo and the Pharmacists, Mastodon, Ozomatli, Devendra Banhart, Shooter Jennings, Calexico, Nortec Collective, Delta Spirit, West Indian Girl, The Knux, No Age, Ra Ra Riot, Dungen, Deerhunter, Gram Rabbit, Matt & Kim, Los Campesinos!, Trombone Shorty, Louisiana Riots, Blue Scholars, Black Joe Lewis & the Honeybears, Wavves, Crocodiles, Holy Fuck, Anya Marina, Zee Avi, Extra Golden, Carney, and Dirty Sweet.  2009 was also a year that marked an incredible drop in attendance and put the organizers in great debt. This was due in part to the cancelling of the Beastie Boys as the premiere headliner as well as overall poor economic conditions. Because of the cancellation, they sold about half of what they had intended to (even after lowering the ticket prices to half of what they were originally). In May 2010 an announcement was released indicating that there would be no 2010 festival.