Being heartbroken is like having this really horrible freedom. You can be selfish with your thoughts, which can lead to manic creativity, but at the same time you're just really miserable.

Worst nightmares can also appear with your eyes open.

I got to live out my 11-year-old fantasies - I got to go on stage with Green Day. Billie Joe called my name from the stage. 'Dookie' was the first album I ever bought. I covered the whole of 'Nimrod' and he'd heard it. That was like the 11-year-old girl dreamed.

The stage is a place where I can be wholly myself. Even though you're in front of people almost to be judged, it is a place without judgement.

I was always that girl growing up who you could find dancing down supermarket aisles. It's that sense of not feeling inhibited. Dancing in supermarkets is my favorite thing.

I'm one of those people that is up for most things. When I was offered to sing at the Oscars I was like, 'Yeah, I want to know what that's like!' I'm always curious to know what things are like - as long as you're not compromising who you are.

I'd experimented with so many different types of music. I had these folky songs I'd written and recorded, but something wasn't quite right.