I wrote 'Lights' a long, long time ago. And I expected it to be on the album, because it was - I wrote it with 'Biff' Stannard. And he wrote every single Spice Girls song and every single pop song of the 90s, basically. So I thought, you know, I was really lucky to work with him, but I didn't think it would be a big song for some reason.

I never remember having a plan. All I could think about was how I was going to afford to get into college or where I was going to stay because I hated being at home. I didn't really have time to think about anything in the future. I didn't think about a career or anything. I went to uni, got a couple of jobs, so I sort of funded it myself.

Every day I'd say I look different. Sometimes I look really formal, sometimes I love the classic Stella McCartney, Chloe Sevigny and Gwyneth Paltrow thing. Other days I like being rock star and wearing leather jackets and studs. I love wearing Burberry - it's the perfect combination of formal and punky.

Not much shocked me. You know, I worked in a home for Alzheimer's patients and my dad used to be really into murders and stuff, so I saw dead bodies. It desensitised me to a lot of things.

I think hype is a good thing. You need it and it'll teach you valuable things and you'll grow stronger, which is what I've done.

I don't really have a style icon but I really admire the way people dress like Gaga, Rihanna and Gwen Stefani. It's good to be inspired by singers who write music and dress incredibly - rather than models and people in the fashion industry who dress immaculately anyway because it's their style.

I hadn't even released my first proper single when I started to feel the strain of attention. But I don't believe that it was the attention that was giving me panic attacks. I think it was everything in my life colliding at the same time. It really did get to a serious point where I couldn't even walk down the street without getting the pain.