Demetria Devonne “Demi” Lovato (born August 20, 1992) is an American singer, songwriter and actress.
Bio: Her parents are Patrick Lovato and Dianna De La Garza. She has an older sister named Dallas as well as a younger half-sister, actress Madison De La Garza, and an older half-sister, Amber. In late 2016, she began dating Luke Rockhold. She dated former That '70s Show star Wilmer Valderrama from 2010 to 2016 and was also in a relationship with Joe Jonas.
Wiki: Actress and singer who appeared in Camp Rock with the Jonas Brothers and whose album, Don't Forget, was certified Gold by the RIAA. She also played Sonny Munroe in the Disney Channel's series Sonny With a Chance from 2009 to 2011.