Luke Bryan, Casey Bishop Rock Out on ‘American Idol’ Finale
Luke Bryan briefly swapped his judge's chair for a spot on the stage -- and his country twang for glam rock -- during the American Idol finale on Sunday night (May 23), inviting recently-eliminated contestant Casey Bishop back to the stage for a duet performance of Bon Jovi's "Livin' on a Prayer."The 15-year-old Florida native was a standout Idol hopeful throughout her time on the show, delivering hard-rocking performances of songs like "House of the Rising Sun" and covers of The Black Crowes, Incubus, Paramore and Alanis Morisette. Bishop was eliminated right before the finale...