There are some voices that just sound great together. Kacey Musgraves and Katy Perry recently found out that theirs sure do. They did an episode of CMT Crossroads. They are killer together. The show is great but one tune was left out...Kacey's new single "Keep it to Yourself." They sound so good together on this. I have no idea how it got cut from the show. Check it out for yourself here.