'American Idol': An Army Soldier Channels Her Inner Donna Summer for Her Audition

Re’h, a soldier in the U.S. Army, becomes a disco diva during her audition on Sunday's 'American Idol.' Her performance brings judges Lionel Richie, Katy Perry and Luke Bryan to a standing salute. 'American Idol' airs Sundays at 8 p.m. ET/PT on ABC.