Not many people can sing the hell out of a ballad like Demi Lovato can. She released an emotional video for her song "Stone Cold," and Lovato is clearly going through a brutal heartbreak. She cries on a mountain. She wears a sweater in the bath for some reason. A fireplace cannot warm her. Much like Leo DeCaprio in The Revenant, Lovato battles the cold and although she doesn't eat bison liver, she does deal with having her heart ripped out. Devastation is truly Lovato in her element.