I'm called emo and goth at school and I hate it. How can I get them to shut up?

Ok, one day at school Joe walked past me and said "Hey emo goth girl." I don't know if that was an insult or what. But I punched him anyway. Ok, so I listen to Cradle of Faith, Avenged Sevenfold, Bullet for my Valentine, AFI, and such. And so I use black nail polish and ware nothing but black clothes. But I act normal. Sort of, and now everybody is calling me that. It's really annoying, so how do I get the bitches to shut up?