Sometimes I write a song and I'm down with it but I'm like yeah, whatever, and then everybody loves it and then it blows up. I'm like: "Okay! I didn't see that coming."

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

I was writing songs as a kid about leprechauns and Catwoman and teapots - whatever it is that little girls wanna sing about. The first song I wrote was called "Kitten." It was about a boy named Liam, who I was just crazy about.

Maybe I'd like to be a little more than friends with Ryan Gosling, but I'd just like to hang out occasionally.

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.

A lot of people, Lady Gaga and Katy Perry and a lot of people have written for other people, and of course Bruno Mars. So I think it's a great way to break into the industry and show people what you can do and show them your talent and people tend to listen a little differently to your own music as an artist, when you've proven yourself as a good songwriter for other artists.

Cheating is bad. That's a big mistake I've made, and I've really hurt people. I've never lied about it, though. I've always been honest.