Metalocalypse is an American animated television series, created by Brendon Small and Tommy Blacha, which premiered on August 6, 2006 on Adult Swim. The television program centers around the larger than life death metal band Dethklok, and often portrays dark and macabre content, including such subjects as violence, death, and the drawbacks of fame, with extremely hyperbolic black humor; which accounts for the cartoon's consistent TV-MA rating. The show can be seen as both a parody and celebration of heavy metal culture.

The music, written by guitarist/creator Brendon Small, is credited to the band, and is featured in most of the episodes. The animation is often carefully synced to the music, with the chord positions and fingering of the guitar parts shown in some detail.

One of the trademarks of the show is having the usual "bleeps" for extreme profanity replaced by pinch harmonics.

The Goodman family lives with their lovable pet dog, Mr. Pickles, a deviant border collie with a secret satanic streak.

Dominating the world of indie music, Detroit Metal City (DMC) is a popular death metal band known for its captivatingly dark and crude style. Its extravagant lead singer, Johannes Krauser II, is especially infamous as a demonic being who has risen from the fiery pits of hell itself in order to bring the world to its knees and lord over all mortals—or at least that's what he's publicized to be.

Unbeknownst to his many worshippers, Krauser II is just the alter ego of an average college graduate named Souichi Negishi. Although he is soft-spoken, peace-loving, and would rather listen to Swedish pop all day, he must participate in DMC's garish concerts in order to make ends meet. Detroit Metal City chronicles Negishi's hilarious misadventures as he attempts to juggle his hectic band life, a seemingly budding romance, and dealing with his incredibly obsessive and dedicated fans.

Frustrated with her thankless office job, Retsuko the Red Panda copes with her daily struggles by belting out death metal karaoke after work.

Series of 100 one-minute anime shorts that centers on Retsuko, a 25-year old red panda who works in her dream company's accounting department. But it turns out that she is forced to keep doing more and more impossible tasks by her superiors and co-workers. She doesn't talk back to them, but she still has to let off steam, so she ends up going to karaoke by herself and singing death metal.