
To the attractively-pierced (three visible, and all I could see was face and hands -- labret, eyebrow, and back of the wrist) girl with dyed black hair who was wearing a green Dropkick Murphys hoodie in front of me in the checkout line this evening at the Wal-Mart: I am sorry if my liking the not-particularly-mainstream band on your hoodie ruined them for you. I don't think I could have gotten a better expression off your face if I'd slapped you with a fresh trout. (Good thing, too, because we don't have a Wal-Mart Super Center, just a regular Wal-Mart. It doesn't sell trout, fresh or frozen, though it did sell the Singing Trout a couple of Christmases ago.)
I know you probably think you're being all avante-garde and stuff, but it's not difficult to dress sort of punk, have punk hair and punk piercings, and wear a punkish sweatshirt advertising a band that plays punk music. You've got a color-coordinated wardrobe persona, there, and what a nice job of matching you have done! Everything goes together so well. It's tedious. The net effect is the exact opposite of what you probably had in mind... chickenshit conformist like your parents, if I can bogart a phrase from an appropriate band.
Quit with the "My music defines me" thing and move on to "Hey, that's kind of catchy..." It's more fun. You get to listen to more kinds of stuff *and* you'll be allowed to like whatever you actually like instead of just "liking" the stuff that matches your clothes.