Demi Lovato starred in a Disney Channel Original Movie.
Camp Rock is a 2008 Disney Channel Original Movie starring the Jonas Brothers and Demi Lovato . 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 .