SLIPKNOT have begun writing the songs for the follow-up to 2001's "Iowa" and plan to hit a studio with producer Rick Rubin (RED HOT CHILI PEPPERS, SLAYER, SYSTEM OF A DOWN) sometime in March. A late fall release through Roadrunner Records is expected."Things are going really well right now," Taylor told MTV. "We're writing a lot of good stuff and you can totally tell it's SLIPKNOT." The Des Moines-based nine-piece have already written four to five songs and has a number of others close to completion, though no song titles are available yet. "We're just getting the music and lyrics together before we really get going," Taylor said. According to Taylor, the group's next album will feature a more "tongue-in-cheek" approach than the one on "Iowa", which was widely perceived as the darker, more ominous follow-up to the band's 1999 self-titled debut. "That first album was a lot of fun to record because we weren't taking ourselves so seriously at the time. We weren't afraid of anything. When we were doing 'Iowa', we got real serious and lost that satirical feel," he said. With regards to the possibility of the group's upcoming effort being their last, Corey said, "For years we talked about doing one or two albums and going out on top. But who knows? We're going to do the album, a possible tour and then see what happens from there."