In other Slipknot news, frontman Corey Taylor has written a batch of songs with New York thrashers Anthrax, which may appear on their next album.
"It kind of started as a joke," explains Taylor. "Then the more we talked about it, the more serious it got. I'm gonna at least help them out. We're just kind of taking baby steps right now.
"It's one of those things where it's like we're just gonna kind of play it by ear and see what happens," he adds. "I'm in two huge bands right now, so it's like I barely get enough time to sleep, let alone do another band! But to have a band like Anthrax look at me and say 'We would love to work with you' is such a huge compliment. They're one of my favourite bands."
Corey Taylor is currently on tour around the US with Stone Sour.