Demi Lovato appeared on children's television.
Barney & Friends is an American children 's television series aimed at children from ages 1 to 8 , created by Sheryl Leach and produced by HIT Entertainment . 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 .