"From the moment I heard Merry Go Round by Kacey Musgraves, I knew we were cut from the same songwriter's cloth. I have been a fan and a friend of hers from the beginning, always championing her prolific songs every opportunity I get. To me, Kacey Musgraves is an artist that should be a household name because she offers a unique perspective with her writing style." Katy Perry can't wait to join pal Musgraves for a taping of TV concert series CMT Crossroads. The two singers will team up to perform each other's songs for the special, which will air in America on 13 June (14).