I loved Gwar when I was 13 but then again, I have odd taste for a kid. I went to a concert of theirs in Chicago, you should have seen the looks i got on the el on the way back
Also, oddly enough a show where they curse,cut peoples heads off on stage and spray blood all over the audience is all ages and Classicaly influenced, intrumentalist Yngwie Malmsteen is 21+. It was the exact same venue and I wanted to go so bad, I stil don't see why it would be 21+, any ideas?