The Queen Monster would have earned even more had it not been for a hip injury that cut her Born This Way Ball Tour short. The tour grossed $168 million through January; had Gaga been able to finish the tour, she would have likely topped $200 million. Even so, her massive social media presence, including 38 million Twitter followers and 58 million Facebook fans, helps keep her near the top of our list. With a new album in the works, look for her to stay there.