Dethklok is both a virtual band featured in the Adult Swim animated program Metalocalypse, as well as a real band created in 2006 to perform the band's melodic death metal music in live shows. Both bands were created by Brendon Small and Tommy Blacha. The music heard on Metalocalypse is performed by Brendon Small, with others as needed. In the Metalocalypse series, Dethklok is depicted as an extremely popular and successful death metal band. The band's fan base includes billions of metal fanatics, who frequently endanger themselves to watch the band perform live.

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