I've never seen magazine covers and seen music videos and been like I need to look like that if I want to be a success. Never. I don't want to be some skinny mini with my tits out. I really don't want to do it. And I don't want people confusing what it is that I'm about.
It's never been an issue for me - I don't want to go on a diet, I don't want to eat a Caesar salad with no dressing, why would I do that? I ain't got time for this, just be happy and don't be stupid. If I've got a boyfriend and he loves my body then I'm not worried.
Americans are always mortified when I tell them this, but in England, it's a tradition to put your plaques and photographs and awards and gold records and stuff in your bathroom. I don't know why.
I think no matter what you look like, the key is to first of all be happy with yourself. And then you know if you want to try to improve things that you don't like about yourself, then do it after your appreciate yourself.
When it comes to staying myself - my career isn't my life, it doesn't come home with me. So it's a piece of piss staying grounded and not being changed by it. The same things I've always liked still satisfy me. My team's the same and my group of friends are the same. Of course I'm bowled over by people's response to 21, and when I meet artists I love, it blows my mind. But it baffles me as well. I go home and my best friend laughs at me, rather than going to a celebrity-studded party to rub shoulders with people who know me but who I don't know. I'm Z-list when it comes to that sh**.
I have never been insecure, ever, about how I look, about what I want to do with myself. My mum told me to only ever do things for myself, not for others.