Demi Lovato, 28, shared on Instagram that she recently spent a few days in Joshua Tree with Dr. Steven Greer — “one of the world’s foremost authorities on the subject of UFOs, ET intelligence, and initiating peaceful contact with ET civilizations,” according to his Instagram bio — and a group of close friends to connect with aliens. “Over the past couple months I have dug deep into the science of consciousness and experienced not only peace and serenity like I’ve never known but I also have witnessed the most incredibly profound sightings both in the sky as well as feet...