The lineup for this years edition of Lollapalooza has been announced. Headliners for the event, which takes place August 3rd through the 5th at Grant Park in Chicago include Pearl Jam, Daft Punk, Ben Harper, Muse, Iggy Pop and The Stooges, Modest Mouse, Interpol, My Morning Jacket, Snow Patrol, and Yeah Yeah Yeahs. You can view the complete lineup here.