Demi Lovato's debut single came from Camp Rock, "This is Me".
Demi Lovato . After making her debut as a child actress in Barney & Friends , Lovato rose to prominence in 2008 when she starred in the Disney Channel television film Camp Rock and released her debut single `` This Is Me '' which peaked at number nine on the Billboard Hot 100 . `` This Is Me '' , is a song by Demi Lovato and Joe Jonas from the Disney Channel original movie Camp Rock and was featured on the film 's soundtrack as the fourth and final single .