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The latest season of American Idol wraps up tonight on Fox, with a number of all-star cameos rumored for the finale. Finalist Lauren Alaina is expected to duet with Idol alum Carrie Underwood, with the other remaining contestant Scotty McCreery teaming with Tim McGraw, according to the Hollywood Reporter. A wide range of performers are slated to show up on the finale include everyone from Beyonce to Jack Black to Judas Priest to Tom Jones. As previously reported, Bono and The Edge will be on hand to perform a song from Spider-Man: Turn Off The Dark,while Lady Gaga will sing "The Edge Of Glory." Steven Tyler had previously claimed Aerosmith would perform together on the finale and the Hollywood Reporter also suggests the surviving members of TLC could appear onstage tonight as well.