I feel like sometimes I'm so positive and sometimes I think the worst of everything or I think the worst is going to happen. It's how I deal with stuff day-to-day, it's just how I get by really, and it's probably not the best way to be.

I'm quite private. And I never wanted to be the biggest star in the world really. So in that sense I've got a good balance of doing great shows, of making an appearance every now and then and writing music, and I don't really have to do much else.

'I Know You Care' is about my dad. And I haven't seen him for a long, long time. And my parents divorced when I was really young. And I guess I just wanted a - it was my way of saying that I wasn't bitter or angry anymore. I was just sad and just felt like something was missing.

I'm a bit of a like girly-girl, really, I like flowery stuff.

There are plenty of bands who never get in the charts and it doesn't mean that they're not any good. Actually, a lot of the top ten is filled with stuff that just sounds the same. I could guess what's in there now - probably a bit of GaGa, Beyonce and some U.S. R&B males.

I met Prince William at a musical festival and he let me know he was a fan of my music. But the invitation to sing at his wedding reception came completely out of the blue. The fact that Kate and William knew the words to my songs was very touching.

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.