Even when I'm in quite a happy state of mind, I like writing really sad songs. I think a lot of people do.

I'm genuinely peaceful and positive. I feel more grounded and connected with everything - friends, family. And I think I've changed the way I deal with stuff recently; I'm trying to think of everything in a more positive way because if something gets me down, it'll really gets me down. The thing I wish I could do more of is train. It's the one thing I do that doesn't require any emotion.

I was super brainy and a proper geek at school, but there would always be a boy. But that sort of obsession did turn me into a songwriter. My writing has always come from that feeling of infatuation.

In Australia and New Zealand, and New Zealand especially, I always find everyone is so nice and friendly. It's one of the few places that I remember visually, like I remember where I stayed and my surroundings - and that's a good sign, because I've got a terrible memory. I'm looking forward to it!

The only day I remember of my parents' marriage was the day my dad walked out. As I stood there at five years old, with my older sister and younger brother, I knew that he was gone.

My fans are so funny, they make me laugh so much. I've got some really, really, funny, clever fans.

When I sing along with Britney Spears I will sing in an American accent. But eventually I found my own voice. My songs are so brutally honest, it would be alien to sing in any accent other than my own. Don't get me wrong - I can imitate singers. I can do bar mitzvahs and weddings.