“Metalocalypse” is an American animated series crafted by Brendon Small and Tommy Blacha, which debuted on Adult Swim on August 6, 2006. The show revolves around the extravagant death metal band Dethklok and frequently delves into grim and eerie themes, such as violence, mortality, and the pitfalls of stardom, all delivered with exaggerated dark humor. This approach is why the series consistently receives a TV-MA rating. It serves as both a satire and a tribute to heavy metal culture.

The music, composed by guitarist and co-creator Brendon Small, is attributed to the band and prominently features in most episodes. The animation is meticulously aligned with the music, showcasing detailed depictions of chord positions and guitar fingerings.

A distinctive feature of the series is its replacement of the typical “bleeps” for strong language with pinch harmonics.