Ah, the rebirth of heavy metal. It reminds me of that old Marx's quote:

"History repeats itself - first as tragedy, then as farce"

edit for the downvoters: I've listened to a lot of heavy metal in my teens. It kind of had sense at the time (late eighties, early nineties) - heavy metal had evolved naturally from other genres, and probably it's a type of music that appeals to a certain kind of person in a certain environment and age range (and that would explain its persistence). Nonetheless, it's a pretty ridiculous and backwards musical genre, extremely rigid and codified and, in my view, hardly evolving at all. The sight of the idols of my youth, now well aged but still dressed like satanists, monks or ancient warriors, and still singing the same stuff after decades, is a sorry one.

Now you can downvote me more :)