The summer concert tour cuts continue as American Idol announced the final eight shows of its Season 9 tour have been canceled. Like Christina Aguilera, Lilith Fair, the Jonas Brothers, and John Mayer before it, the Idol tour is ending two weeks earlier than planned, on August 31 in Indianapolis, and has also rearranged other shows. Though the tour’s promoters at LiveNation have yet to make an official statement, there is speculation that the economy is to blame for the boom in concert cancellations.