Eddie Vedder, Sonic Youth, Jack Johnson and Willie Nelson are among the stars who have contributed covers of Bob Dylan songs for a new movie centred around the legendary rocker.

Tickets are now officially on sale for Lollapalooza 2007, August 3-5 in Chicago’s Grant Park. Among the 120-plus artists are behemoths Pearl Jam — in their sole U.S. show this year — as well as Daft Punk, Ben Harper & The Innocent Criminals, Muse, Iggy and the Stooges, Interpol, Kings of Leon, Modest Mouse, My Morning Jacket, Yeah Yeah Yeahs, Perry Farrell’s Satellite Party, Snow Patrol, The Roots, Paolo Nutini, Femi Kuti and The Positive Force, and many more.