"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'd like a male to listen to my music and find it kind of fascinating, what a girl goes through when they get heartbroken or get sad or get hurt by something."

"Even when I'm in quite a happy state of mind, I like writing really sad songs. I think a lot of people do."

"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 could always sing, from a really young age, but my voice was really weird. I used to make my mum turn up the radio every day in our house. She was well into music so I got that from her."

"Regard it as just as desirable to build a chicken house as to build a cathedral."

"One argument goes that recessions are good for female artists because when money flies out the window, women are allowed in the house. The other claims that when money ebbs, so do prospects for women."

"The thing is, I have a zillion apps, and I'm always looking for the perfect arrangement for them, so scrambling my home screen is part of that eternal quest."