Check out “Headbangers Ball” this Saturday night for the debut of Slipknot’s “Sulfur” video. The clip was shot in Los Angeles in February and directed by band percussionist Shawn Crahan (a.k.a. Clown) and P.R. Brown. The video depicts the nine members rocking out in groups of three and submerged in water one at a time. The video concept was modeled after a video installation by Bill Viola called “Ascension” that’s currently on display at the Des Moines Arts Center. Click “more” to watch a preview of the video.