Really depends what you mean. I like punk music (The Clash, Stiff Little Fingers, the Ramones, Dead Kennedys, Against Me!'s first couple albums, Jawbreaker, etc.) but what "the punk lifestyle" means varies from person to person. I'd consider myself a punk, but a crustpunk who squats in old abandoned buildings and refuses to in any way contribute to the rich becoming richer might call me a poseur (at the very least).
But yeah, I likes me some punk and metal.