I'm just sittin here trying not to be unhappy.

People are always spewing this horseshit about how age doesn't matter. Well, it does matter! I'm thirty-five, and I'm happy to be thirty-five. I can't pretend I'm still a snot-nosed 21-year-old.

As long as it says Metallica on the record it's Metallica.

Parenting changes your life, it changes how you hear yourself in relationship to others - which is part of the reason that a bunch of people in the rock community are sick of the goodwill and positive energy and love between these 45-year-old musicians who they preferred when they were 25 and taking stabs at each other.

Back then, I was really into composing the entire solo, beginning to end. I wanted to have it at least 80 to 90 percent complete before going into the studio. I didn't improvise in the studio. I was young, and I didn't really have the development in my playing or the ability to show up with nothing and then put down 500 ideas. I can do that now because I'm so much more of a musician now.

The day Metallica's over, i'm not going to put an ad looking for another band. I'll put my drumsticks on the shelf and there's 14 other things I wanna try. Metallica's the only band I've ever been and it's the only I ever wanna be in.

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.