"There are so many things to think about when you make an album. Like, who am I trying to impress? Am..." — Ellie Goulding

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 instinctively dress a bit tougher because I've spent a lot of time in the U.S. and I realised there was a certain image projected of me here. I've always been an absolute rebel. When I was in my teen years I had piercings and wore all black.

I suffer panic attacks which has made me really conscious about my fitness and I have become addicted to jogging. It might sound odd but a lot of good has come out of it. My fans send letters saying they have taken up jogging because I do it.

'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.