Donnie Yen

When you're talking about your own music every day, listening to bands, going to festivals, you can kind of lose sight of your initial connection with music. Instrumental music - especially jazz - helps me refocus.

Say you can't put one foot in front of the other, you punch like a child, and you're not flexible at all. We'll show you some aikido, some ground jujitsu, some gun stuff, some knife moves. We can make a pretty good-size dent with that.