”Every day a multitude of stars wander through the halls of MTV News to talk about their latest projects and goof around with staff members. But sometimes we catch stars elsewhere, and that’s why we put together Spotted!, a daily compendium of stars in the wild. Demi Lovato’s been living in the fast lane lately. She released an album in July and successfully collaborated with the Jonas Brothers on a hilarious music video. She also worked with the three bros again on the sequel to the Disney hit movie, “Camp Rock 2″! She’s a surefire hit and a surefire hit deserves a great party, right? Of course! Demi was spotted at her huge graduation/birthday/coming out bash over the weekend at the Roosevelt Hotel in Hollywood.