Mastodon know how to add a little fun to their chaos. Earlier this year, they released "Show Yourself," off of their upcoming Emperor of Sand. It's the band's poppiest song to date, and today they've released its wacky music video. The story follows none other than the Grim Reaper, who's having a rough time doing anything right of late. He goes to work at his job at the "Department of Death," where he's issued a new assignment to assist in killing rock music. And what band is he told to kill? Clearly your favorite sludge-rock four-piece. Find out how he does in the clip below, and look out for Emperor of Sand March 31.