Katy is on top and she still doesn't matter, she's still playing it safe, and that's why she will never really matter in Pop Music. Sad Gaga's decline is more well known than the Prism era will be. She's overshadowed even when her biggest competitor is under performing.
Every Rihanna era is an erotica era. Unless you mean success wise
Bye
I meant the Sex book and the Justify My Love video
But it is funny how she has a children's movie coming out in November but poses topless in the French equivalent of Playboy