I love Katy Perry, she is a wonderful pop singer.
I never looked at people or singing as commodities.
Everything changes all the time, and unfortunately, everyone who knows what you do by buying records only hears a small amount of what's going on in your life.
You're the Picasso of pain.
Most chick-singers say "If you hurt me, I'll die"... I say, if you hurt me, I'll kick your ass.
People's lives change dramatically over such a long time period, and I think that if you're still vital, and you're still interested in writing and things like that, of course your music evolves and reflects where you are in your life.