Shawn Mendes and Miley Cyrus Could Be Working on 'Secret' Duet The pop stars are both set to perform at the Grammys on February 10. Miley made her fans think they could be singing a duet together at the ceremony. She shared a picture of herself rehearsing in front of some of Shawn's instruments. Eagle-eyed fans of Mendes noticed that his name was written on one of the guitars. TMZ reports that the pair are in fact working on a secret song together.
