Lady Gaga shocked the world on Sunday when she won a Globe Award for role in American Horror Story: Hotel. But according to a source close to the 29-year-old "Born That Way" singer, the best is yet to come — and Leonardo DiCaprio better beware!

Yesterday, Gaga delivered a huge blow to her reps at WME agency by leaving them and signing with CAA, which is known for creating A-list actors. However, Breaking Celebrity News has exclusively learned that Gaga's switch was her first step in leaving music behind to focus solely on her acting career!