This past Sunday (June 28), Underwood performed on closing night of the Big Barrel Country Music Festival in Dover, Del. and showcased her rap skills on the mic with a cover of Wiz Khalifa. But not just any cover: While performing her own 2013 hit "See You Again," Underwood segued into an impressive cover of Khalifa's recent No. 1 hit "See You Again," from the Furious 7 soundtrack.