I took a trip in 2004, a year after the war started in Iraq. I played music on the streets of Baghdad for Iraqi civilians. I'd also play for U.S. soldiers at night when they were off duty in the bars. Then I would talk to people, and I would film them and ask them about their life and the conflict.

I eat bags and bags of cashews. I've got them in the kitchen, and about ten feet away I've got another bowl on the kitchen table. In my backpack, I've always got a bag of cashews. I started eating them in the airports because that's the one food that you can find in every airport that's actually nutritious.

We would play songs live on stage, and then we'd watch their reaction we were receiving immediately, if people were dancing and singing along. If they weren't, then we'd go into the dressing rooms of the different NBA teams that we were playing in their arenas, and we'd change the songs right there.

I'd play music on the street, especially in developing nations where a lot of kids couldn't wear shoes. In order to relate with kids that would be following me barefoot, I would take off my shoes, and they would all laugh at me because I couldn't go three steps without wincing.

I try to use the attention that I get to help and to serve, and that's really what I'd see as my work - to serve my community, serve the planet, serve my family. And I think a celebrity is someone who draws the attention on themselves, and then it kind of stops there.

My greatest sense of accomplishment has come from having two amazing sons, but it's also a paradox in that the times when I felt like the biggest failure have been times when I felt like, as a parent, I wasn't making the right decisions or succeeding in the way that I should.

People worry that gas prices are high and how they are affecting their pocket book. But they want to know about renewable energy. People are really starting to question things, and that's made people look to the future in a positive way.

I went to the University of San Francisco on an athletic scholarship. I didn't study in high school. I was just there to get by and to play basketball. But a funny thing happened to me when I got to college. I got challenged by the work and the professors.

The rap community has been singled out as more homophobic than other groups, but I don't think that's right. It's homophobic, all right, but no more so than the heavy-metal community or the Hollywood community or any other community.

I went to Iraq because I wanted to see what one year of occupation had done to Iraqi society, and I went to the West Bank and Gaza Strip because I wanted to see what three generations of occupation had done to Palestinian society. I found a lot more hopelessness and despair in Palestine.

Playing on the streets of Iraq, or in Israel or the Gaza strip, I'd sing angry protest songs against war. People would say, 'Make us clap, make us dance, and laugh and sing.' It really made me think about the importance of happy music.

My favorite band of all time is The Clash. The thing I love about The Clash is they started out as guys who could barely play three chords. They dabbled in reggae, punk, rap, jazz. They came to a sound that could only be defined as The Clash. It was impossible to say what it was. I admire them for that.

Rap has so many possibilities that need to be explored. There are different factions of rap, but some are in a rut. Rap doesn't have to be about boosting egos and grabbing your crotch and dissing women. There's a way to make political and social issues interesting and entertaining to the young rap audience.

After a show, I'll get the 16-year-old white kid whose lip is pierced, his head is shaved and his parents hate him, and the young gangster from the screwed-up 'hood, and they say that now they realize there's someone out there who thinks like they do.

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.

All my songs are different, but from the overall experience, I want people to sense that they can overcome and move through difficult times and find strength in my music. Maybe it's a song that makes them cry and move through something else.

Recording in Jamaica is like nothing else. The studios are always closed in America. But in Jamaica, the studio doors are wide open, and there's music blasting out in the street. You can see the reaction of people immediately.

If we do not change our negative habits toward climate change, we can count on worldwide disruptions in food production, resulting in mass migration, refugee crises and increased conflict over scarce natural resources like water and farm land. This is a recipe for major security problems.

No life's worth more than any other, no sister worth less than any brother.

You learn a lot when you're barefoot. The first thing is every step you take is different.

I hope I inspire people to dream bigger than what they are living, but a dream within their reach.

Sometimes the hardest thing to do is just to stay human.

Music has the power to bring people together like no other art form.

Investing now in safe-guarding people by helping them to adapt to climate change, will help save money and lives while building resilience.