Glee star Lea Michele shared a new song from her upcoming album Louder called "You're Mine." The ballad is a heartwrenching tribute to her late boyfriend Cory Monteith, and Michele revealed that the song was one of Monteith's favorites off her new record. "The song makes me think so much of Cory. It was ours. When I think of him, I play this," she told Jonathan Groff for Teen Vogue. "It's so special to me and it's story is so close to my heart." Co-written by Sia, the track shows off Michele's powerful vocals. Louder isn't scheduled to hit the shelves until March 4, but you can listen to "You're Mine" below.