Hugh [Evans] called us. And obviously this has been on our radar for all the years it`s been going on. And each year obviously reaches more and more people, and it`s high profile. Hugh reached out to our manager just down the street. And we said we`re here [ on GLOBAL CITIZEN in the Central Park] to help and do whatever we can.

What's the message in Metallica? There is no message, but if there was a message, it really should be look within yourself, don't listen to me, don't listen to James, don't listen to anybody, look within yourself for the answers.

The worst day of my life was once that my mom didn't allow me to go to a Queen concert because I was grounded.

I really like LIMP BIZKIT. I mean, I've said it for years - I don't know if anyone actually hears it - but I think LIMP BIZKIT are an awesome band. In terms of the rap-rock bands, or ANY bands out there, I think they really are truly among the best.

Stretching your parameters is a necessity if you wan to keep growing, and sometimes the best way to do that is to dive into the deep end.

Metallica lives in a little bubble. We just do our own thing. We're not part of any trends or waves or fads. We can just do our own thing, all the time. It's a great luxury. I don't think we were really appreciative of it until recently, and really understood that it is what keeps us alive. It's great to be able to have the freedom to run around and do all this crazy stuff, and at all cost, avoid making another record, just to piss our managers off.

The only band that we have never played with but have always wanted to is the Rolling Stones.