Bruce Springsteen and Neil Young are both set to play the Hard Rock Calling 2009 event in London this June and there is room on the bill for another band. To find that lucky group, Hard Rock is holding a contest called Ambassadors of Rock Battle of the Bands. In it, local groups will compete for a spot on the stage at Hard Rock Calling. Battles will take place at select Hard Rock Cafes and one winner from each participating city will be judged by a panel of music industry insiders and artists like E Street Band member Steven Van Zandt. They’ll narrow down the competitors and leave it up to fans to vote for the winner at HardRock.com. Head to that site now for all the info.