It's about you putting in the work, practicing every day, and hopefully one day you write the song the whole world wants to get down to. And one day you're going to be sitting next to Ellen DeGeneres talking about how you broke records and rocked the Super Bowl!

I don't want to sound presumptuous, but I've made it my goal to revolutionize pop music. The last revolution was launched by Madonna 25 years ago.

I work with my brother Finneas, and he produces all of my music in his little bedroom in our house. We actually tried renting out a studio for a month when we were producing 'Don't Smile at Me,' but it was really hard there, and we ended up just doing it at home anyway.

I don't care what people say about my relationship; I don't care what they say about my boobs. People are buying my songs; I have a sold-out tour. I'm getting incredible feedback from my music.

For some people, fame kills it and becomes more important than the music or the performance. But for me fame is like rocket fuel. The more my fans like what I'm doing, the more I want to give back to them. And my passion is so strong I can't sleep - I haven't slept for three days.

The first time I knew what I wanted to do with my life was when I was about four years old. I was listening to an old Victrola, playing a railroad song...I thought that was the most wonderful, amazing thing...That you could take this piece of wax and music would come out of that box. From that day on, I wanted to sing on the radio.