They’re loud, hairy, weird, ridiculously smart, release cool records in limited runs, and they make incredibly dumb music. If that’s not a formula for cult status, then we don’t know what is. The Melvins bridge grunge and punk with a handful of varieties of metal — stoner, doom, and drone. But you probably knew that already. The fact that they’ve absorbed two members of the Butthole Surfers into their revolving lineup in the last few years is a sure sign that they continue to evolve into even greater levels of insanity. They’re supporting System of a Down.