Dolly Parton, Katy Perry Team Up for Royal Medley at ACM AwardsDolly Parton, Katy Perry Team Up for Royal Medley at ACM AwardsIn one of the most anticipated and unusual duet pairings in recent memory, Dolly Parton teamed with pop superstar Katy Perry for a special performance at the 2016 ACM Awards.Sterling WhitakerSterling Whitaker