I think that American music, for me, it's a synthesis of a lot of different things. But for me growing up in North Carolina, the stuff that I was listening to, the things that I was hearing, it was all about black music, about soul music.

I was a huge Beatles fan. We could talk about who I listened to growing up and what my sources were, but certainly the Beatles were a late, important resource for me, and I just took my guitar and a handful of songs, and I decided, well, I'll just go over and travel around Europe and see what comes of it.

It is the most delightful thing that ever happens to me, when I hear something coming out of my guitar and out of my mouth that wasn't there before.

One of my earliest memories was me singing 'Oh, What A Beautiful Mornin' at the top of my voice when I was seven. I got totally carried away. My grandmother, Sarah, was in the next room. I didn't even realise she was there. I was terribly embarrassed.

Anything that puts money back in the pockets of the consumer, however you choose to do it, is a good idea.

As of 2013, according to the World Health Organization, 35 million people were estimated to be living with HIV or AIDS globally, and 39 million have died from the disease. The epidemic of denial won, and now everyone knows there is money in the making of drugs for AIDS.

My job is writing. I get paid to do it. When was the last time you heard someone challenge a doctor for making money off of cancer?

If you put down a list of jobs, doctor, lawyer, janitor, teacher or movie star, everybody would pick the movie star. And why? So you could lie around the pool, drink margaritas and send money to your parents. So that's what I did.