I listen to crazy, robust rock music where they sing their faces off, and soul music, which can be similar.

Most artists - painters or writers - I think create out of stress or negative situations. Look at rock music. It's about getting things off of your chest, and it's a means of venting in many ways. That's what my work is about.

MCs are authors, and rock musicians who write lyrics are authors, to a degree.

'Next To Normal' is rock music. It's a rock opera. That, definitely, has a place in popular music.

I was fortunate enough to be living in Hollywood, CA, when the underground punk rock music scene started. It was a small group of artists, misfits and weirdos, where everyone was welcomed and encouraged to express themselves.

I felt very proud to be part of a music scene that was changing the face of commercial music and rock music internationally, but I also felt like it was necessary for Soundgarden - as it was for all of these Seattle bands - to prove that we deserve to be on an international stage, and we weren't just part of a fad that was based on geography.

Hip-hop kind of absorbed rock in terms of the attitude and the whole point of why rock was important music. Young people felt like rock music was theirs, from Elvis to the Beatles to the Ramones to Nirvana. This was theirs; it wasn't their parents'. I think hip-hop became the musical style that embraces that mentality.