Dethklok is a virtual band featured on the Adult Swim cartoon "Metalocalypse", made by Brendon Small.

Nathan Explosion - Vocalist. The lyrical visionary of Dethklok.
Skwisgaar Skwigelf (Taller than a tree) - Lead Guitar. From Sweden. Fastest guitar player alive.
Toki Wartooth (Not a bumblebee) - Rhythm Guitar. From Norway. Second-fastest guitar player alive.
William Murderface (Murderface Murderface) - Bass. No one in the world is full of more hatred than him. And he hates no one more than he hates himself.
Pickles the drummer (Doodily doo, ding-dong doodily doodily doo) - Drummer. Raised in the Midwest, he became the world's most celebrated drummer after fronting L.A. rock band Snakes and Barrels.
Dethklok is constantly being plotted against by a Council of men who are losing their control over the world.
Also, all of Dethklok's chefs and most of their other employees are cursed.

Dethklok displays a range of styles from death metal and melodeath to symphonic black metal. They are universally recognized as the world's greatest band, because they are blacker than the blackest black times infinity.

Dethklok's album (feat. the legendary Gene Hoglan on drums), titled "The Dethalbum", was released Sept. 25th and is available in regular and deluxe editions.

After the credits in every episode of Metalocalypse it says "All music by Brendon Small". In an interview found here he admits to using pro tools to edit and layer the songs for the band.