Green Day, Soundgarden, Lady Gaga for Lollapalooza 2010?

And so the Lollapalooza rumor season has begun: According to The Daily Swarm, “multiple industry sources” have confirmed that Green Day, the recently reunited Soundgarden, and Lady Gaga will be three of the six headliners scheduled to descend on Chicago’s Grand Park from August 6-8. More rumors here.