Today will write aboute Demi Devonne Lovato...so nice girl with little problem. She is the singer- songwriter,musician,actress and spokesperson.Demi was born  in August 20,1992 (age 19),Albuquerque,New Mexico,U.S.Acting career 2006-2009 Camp Rock, Sonny With a Change,Princess Protection Program. She play on the vocals,guitar,piano.