I am vegetarian, so I don't have clothes, shoes or bags made from leather or suede or any animal products. Shoes are hard to find. These are fake Ugg… - Leona Lewis

Diamonds are supposed to be a girl's best friend but it's impossible to know for sure where they have come from so I find it is safer just to avoid them altogether.

You have to have the courage to stand up for what you believe in – no matter how hard it is – as your beliefs make you who you are amid all the celeb madness. I'm a vegetarian and never wear leather or use products tested on animals. When I was just starting out I'd get a gazillion freebies thrown at me, so it was hard to know what contained what. Now, I've made sure that before I get to a photoshoot people know my stance on that.

I'm not a loud, extravagant person; I'm never going to be that and, to be honest, I don't want to be like that. I don't show off or boast, and it's pointless to think I'm going to be any different.