Look at Stefani Joanne Angelina Germanotta, better known by the stage name Lady Gaga. She's completely redone her career in the last five years, and it appears at least Lady Gaga is on her way to a really serious singing career (she's a really good singer and pianist). A long way since she did all those shocking music videos, that's to be sure.
also won a golden globe for acting
Perry can’t redefine herself and she is so removed from herself. Stefani is solid.