Demi Lovato is actress and singer

Demetria Devonne "Demi" Lovato (born August 20, 1992) is an American actress and singer-songwriter. She is best known for her roles as Mitchie Torres in the Camp Rock movies and as Sonny Munroe in Sonny With a Chance. Lovato starred in the 2009 movie Princess Protection Program. Before Disney, she had one of the roles on Barney & Friends.As a solo musical artist, Lovato released her debut album