Slipknot is not a band; Slipknot is a phenomenon. Since their debut album crashed into the public consciousness in 1999, they've cut a swath through terrified parents and baffled critics to become one of the biggest bands on the planet.
Quite aside from their uniquely terrifying image, flair for courting controversy and punishingly heavy sound, a huge part of their success has been the twin guitar attack of Mick Thomson and Jim Root.
In part one of our Mick Thomson/Jim Root double header, we're chatting to the pair about the gear, the riffs and the recording techniques that established Slipknot as one of the most successful metal bands in a generation.
Don't forget to check back next week for part two of our mammoth interview, where we'll be turning our attention to their formidable live show, Slipknot’s killer riffs, digital gear and just how Jim juggles two mighty metal behemoths...