Carrie Underwood displayed a new talent at a concert on Sunday in Delaware. The former "American Idol" champion and country superstar surprised the audience at Big Barrel Country Music Festival with her rapping skills. Underwood fused her 2012 song "See You Again" with her rendition of Wiz Khalifa's current hit with the same title. The crowd roared after the singer delivered the rapper's part. Underwood stumbled on a few words during the rap bit, but crooned her way through Charlie Puth's hook perfectly.