Metalocalypse is an animated television series that premiered on Adult Swim in 2006. The show follows the fictional death metal band Dethklok, known for their extreme music and massive popularity. The series combines dark humor with over-the-top violence, showcasing the band's adventures and the chaos that surrounds them. The plot often revolves around the band's interactions with their fans, the music industry, and various threats to their existence. Each episode features original music by Dethklok, contributing to the show's unique blend of comedy and heavy metal culture. The series has gained a cult following and has influenced the metal genre.