Metalocalypse is an animated television series on Adult Swim created by Brendon Small and Tommy Blacha. It has been described as "Spinal Tap meets Scooby-Doo meets Norway". The show's first season consists of twenty eleven-minute episodes, the first of which premiered on the Adult Swim Video on August 4, 2006 and on Adult Swim proper the following Sunday. Metalocalypse was renewed for a second season consisting of twenty episodes which began airing September 23, 2007, two days before the CD release of The Dethalbum. The Metalocalypse premiere was the #1 rated show in its time slot among males aged 18-34, and earned the network's best premiere delivery and ratings to date in 2006. Among the top ad-supported basic cable programs of the week, Metalocalypse ranked #12 among men 18-34 and #6 among men 18-24. The series premiere ranked #30 for the week among adults 18-34.

Dethklok is the biggest, baddest, and most famous heavy metal band in the world. The quintet, consisting of Americans Nathan Explosion (vocals), William Murderface (bass), and Pickles the Drummer, along with Scandinavian guitarists Toki Wartooth and Skwisgaar Skwigelf, have to deal with their fame and other situations in their lives, all the while being monitored by a government organization out to destroy them. Written by Hailey-7