In my head, I wanted to be Madonna, but the music I was writing on paper was not what you'd choreograph dancers in costumes to. It was more coffee-house stuff.

No matter what, I always have expensive designer shoes. It's all about the shoes for me.

I am a little crazy but when I'm on-stage, then I really get to play it up and perform and be over the top and it's like an outlet. It's fun to 'wild' out.

Obviously I love writing with Katy [Pery], I feel like we're the same person when we write together. Even though we fight a lot, we fight over every line and we pull each other's hair and we cat-fight all the time, it's always worth it in the end.

I'd like to go the Cher route and act and sing and write and have a TV show and do it all.

I've been close friends with Katy since teenagers, before she was Katy Perry. She's always been a great resource for me to pull from and watch - from her choice of how public she wants to be about her personal life on down. I also watched her develop from the coffee-house singer-songwriter I knew to her be to playing arenas and killing it.

Ke$ha is super talented and super fun and always down to party - I love that girl.