The 22-year-old singer said that she would rather be known for her music than her looks.
She told Celebs On Sunday: 'No one's ever told me to lose weight or anything like that. I don't rely on my tits to have hits. How I look has never been a big part of my life. I've never looked at a magazine and thought, 'that's how I need to look if I want to be successful in life'. If you compare the way I look to big artists like, say, Katy Perry, I'm living proof it's all about the music because there's nothing else I'm relying on to do well.'
But she added she is keen to try out new styles and fashions.
She explained: 'I'm trying to make more of an effort with my style. I'm a woman now. I like wearing three-quarter-length dresses and things because I don't like having my thighs out, but I am trying new things.'