Metal culture includes a host of rituals (head banging and moshing), gestures (throwing “devil’s horns” or forming a “claw”) and fashion (battle vests). Importantly, concert attire must adhere to the following unspoken rule: When you see a band play, you should not wear that band’s T-shirt to the show.
Why is wearing the performer’s T-shirt a major etiquette faux pas?[1] After all, sports fans wear their team’s apparel when attending games. Metal shows are different from a sporting event because we assume that everyone at the show is a fan of the headlining (or supporting) band. Wearing a shirt that represents a different band signals your other musical interests to other people at the show. This allows fans to build legitimacy in a tacit way and is a form of word-of-mouth marketing that many bands rely on. Metal T-shirts often showcase incredible artwork and fans want to wear them in a setting where they can be fully appreciated.
The significance of T-shirts to heavy metal extends beyond concert venues. Aside from a momentary trend where death meal shirts posed as high fashion, wearing metal shirts out in the wild serves a broader social function for people who are not exactly known for their social skills. T-shirts are an important tool for network formation in a culture that is largely decentralized and primarily underground. Seeing someone wear a metal shirt that you recognize creates an instant connection and an acknowledgement of participation in a shared community. It often provides the motivation to strike up a conversation. The internet was and continues to be monumental for spreading metal across the globe, but T-shirts are a way for metalheads to find each other in real life.
Can seeing someone wear your favorite band’s shirt inspire a love story?
[1] The main exception to this rule is the band Ghost. If you attend a Ghost concert, you will observe a sea of people wearing Ghost shirts. I suspect that this is because a significant number of Ghost fans do not have extensive metal interests and thus do not adhere to heavy metal cultural norms. Ghost concerts are still fun, so who cares?