If you're gonna play guitar in a metal band, you've got to know your Sabbath. Tony Iommi is a god of riff writing and to this day very few have come close to his ability to write heavy, memorable riffs.

Andy Aledort of Guitar World shows you how to play four classic Black Sabbath tunes: "Iron Man", "Supernaut", "Sweet Leaf" and "Sabbath Bloody Sabbath". The DVD will run you $14.99 and comes complete with a printable booklet that contains the guitar and bass tabs.

Get that sumbitch right here.