Emperor Magus Caligula is a Swedish extreme metal musician best known as the former vocalist, bassist and lyricist of Swedish black metal band Dark Funeral, performing for the band between 1995 and 2010. He has also been the vocalist of death metal bands Demonoid, replacing Christofer Johnsson, and Sanctification. He was the original vocalist for Hypocrisy and has featured in other extreme metal bands including Dominion-Caligula (with former Dark Funeral secondary guitarist Dominion) and God Among Insects. He has also performed backing vocals for the Swedish black metal band Sportlov. Broberg made an appearance in the Swedish zombie film Die Zombiejäger, playing a humorous part of a necrophile. Dark Funeral also provided two songs for the film, Godhate, which is played during the film's opening credits and Thus I Have Spoken, which is played during a fight scene.
