Demi Lovato, Interview, Singer, US, Video, Wilmer Valderrama Demi Lovato says she "wouldn't be alive" without Wilmer Valderrama 7:30 AM David Jonn 0 Comments Demi Lovato joins "HuffPost Live" to talk about her relationship with Wilmer Valderrama and her struggles with bipolar disorde. (Video: HuffPost Live)
