Demi Lovato was once "Cool for the Summer" – but this winter, she's feeling "Stone Cold."<br />The singer, 23, released a haunting music video for her new single on Wednesday, marking a sharp departure from her recent upbeat hits.<br />Reflecting on losing a love to another woman, Lovato embraces her emotion while wandering in the snow and breaking down in tears in a bathtub.<br />"Stone Cold" is the third release from her latest album Confident.<br />As convincing as the emotion in "Stone Cold" might be, the lyrics aren't about the state of her relationship with Wilmer Valderrama, 36 – in January, the former Disney star and actor celebrated their sixth anniversary.
