SLIPKNOT percussionist/mastermind Shawn Crahan (a.k.a. Clown), who is believed to be recording material for a side project with producer Rick Rubin (RED HOT CHILI PEPPERS, SLAYER, SYSTEM OF A DOWN), recently spoke out in support of STONE SOUR and MURDERDOLLS, the SLIPKNOT offshoot bands featuring Crahan's cohorts Joey Jordison, Corey Taylor and Jim Root."Joey and Corey and Jim have found another extension of themselves, okay, and I want to clear it up," Shawn told Metal Edge. "Corey is a genius. He writes all the time, all day long. I got notebooks that he's just left laying around, full of conceptual pieces. Some belong to SLIPKNOT, some belong to Corey Taylor. There's things he won't even bring to SLIPKNOT, because it's not the 'KNOT. And no one knows that better than Corey. Think about what he did, man. I mean he takes his mask off — you know how hard that was? And he did it, and he's succeeding. And I say, good for him, because that's what SLIPKNOT stands for. Recently, I said we're the biggest punk band in the world. I didn't mean like we're a punk band, [but] I mean we live the punk feeling. We're the biggest metal band in the world, and I got three dudes trouncing around the world without masks, succeeding, okay? That's exactly what SLIPKNOT is."