I'm very involved with PETA - People for Ethical Treatment of Animals - and Greenpeace and a lot of women's shelter and clothing giveaways.

The problem was, I was labeled as trouble - so I was like, 'Trouble? I'll show you trouble. You want trouble, well here it is!' No matter what label they give you, the best thing you can do is prove them wrong.

I'm pretty confident and, at the same time, I'm pretty insecure. I'm like a walking conflict.

I get a lot of flak for it... people saying [my body] is not normal for a girl... But I'm okay with it. I think it's because I was a gymnast for eight years, from ages four to 12. My body was made before my bones were fully grown. Gymnasts are short, stocky, muscular powerhouses.

There are 50 new tabloids every year, and I'm in them, and I read them, and I do stupid things.

People are always so surprised when they meet me. Firstly, that I'm 'so tiny', and secondly that I'm 'so sweet'. They seem surprised that they're not scared of me.

I turned down Prince William's invitation for me to sing at his birthday bash because he was spearing animals in Africa and bringing publicity to it, and I thought that was pretty disgusting!