Hangout 2011 Lineup: Paul Simon, Foo Fighters, Widespread Panic, The Black Keys, My Morning Jacket, Flaming Lips, Cee Lo Green, Primus, Michael Franti & Spearhead, Pretty Lights, Bassnectar, Girl Talk, Ween, Matisyahu, Warren Haynes Band, Umphrey’s McGee, Slightly Stoopid, Drive-By Truckers, Amos Lee, Old Crow Medicine Show, Medeski, Martin & Wood, Keller Williams, Galactic, Xavier Rudd, Minus The Bear, Trombone Shorty & Orleans Avenue, Portugal. the Man, Beats Antique, Dead Confederate, Jonathan Tyler & Northern Lights, Easy Star All-Stars, Mariachi El Bronx, Truth & Salvage Co, Kristy Lee, Civil Twilight, Rich Aucoin, A Thousand Horses, Jon Black, Cas Haley, Roman Street.