Dave Grohl

If I'm not barefoot, you'll probably find me with a pair of New Balance on. And I'm not one of those hipster-jump-on-the-band-wagon-ironically-cool NB fans. I've been rocking those kicks since they were true nerd shoes. Since the '80s, yo! Word.

I can understand how some people might resent me for having the audacity to continue playing music, but it'd take a lot more than that to stop me from doing it. I started Foo Fighters because I didn't want to retreat.

It's not just the physical aspect of boxing, it's the whole fighter mentality that has been ingrained in me through the years as a competitive athlete. One of the hardest things you'll ever do is to box - to get into the ring and to face off with somebody whose whole goal is to knock you out, to hurt you, and to be able to fight back.