Demi Lovato's brand new music vid, "Skyscraper" is debuting TOMORROW! It's no secret that it's been an emotional year for this 18-year-old, but Demi's proving she can overcome any obstacle with the release of her new single. "Skyscraper" is an inspirational anthem, reminding fans (as well as Demi) to stay strong and never stop believing! Check out her teaser vid below and make sure to tune into E! News! TOMORROW to catch the official full-length premiere!