Neurosis

Neurosis are simply huge--in terms of both sound and influence. These guys have produced landmark hardcore, sludge, and post-metal records, carving out a niche for bands like Isis and Pelican. This live video for "Locust Star" is one of the most metal things ever. Churning, bulldozer guitars? Check. Three dudes letting out belly-busting whale bellows at once? Check. Keyboardist playing instrument with smashing fists and bassist who looks possessed by multiple demons? Check.