The U.S. has historically been the world's largest contributor to climate change.

During my travels in Iraq, Israel, Gaza, Brazil, Indonesia, Japan, Europe and all over the United States, I have seen and heard the voices of people who want change. They want the stabilization of the economy, education and healthcare for all, renewable energy and an environmental vision with an eye on generations to come.

My mother and father took me in and provided everything for me - the love, nurturing, basic necessities - to give me the space to grow wings, so that when I went out into the world, I could fly.

It's never too late to start the day over.

The personal revolution is far more difficult, and is the first step in any revolution.

I think right now is when we need to hear different voices coming out of all parts of the world. You can't just hear the politicians and the military leaders. You have to hear from the taxi drivers. You have to hear from the painters. You have to hear from the poets. You have to hear from the school teachers and the filmmakers and musicians.

I don't know if music can change the world overnight but I know that music can help someone make it through a difficult night.