Weight doesn't matter as long as you're happy with yourself.

In the next few years I'd love to play a female version of Doctor Who. I know exactly how I would play her - she would be crafty in a clever kind of way.

I now know how to walk around properly in my undies. People would keep telling me to push my tits out! I also now know how to use a whip on people without causing bruising.

People need help, advice and love, not websites telling you how to lose your last pound, or scantily clad, deeply anorexic celebrities parading around flaunting their golden bones.

No one had much faith in me because I was so young. They imagined a little brat with a flash-in-the-pan single. It was inevitable... Thankfully, I proved people wrong.

The whole size zero debate is disgusting. My sister, who's 13, looks amazing - but she's already worried about her figure.

I am thinking about those things now. More so than all my friends - they're a lot older than me, but they're not even thinking about babies.