Emperor Magus Caligula (Magnus "Masse" Broberg; born 23 May 1973 in Ludvika, Sweden) is an extreme metal musician best known as the former vocalist, bassist and lyricist of Swedish black metal band Dark Funeral, performing for the band between 1996 and 2010. He has also been the vocalist of death metal bands Demonoid, replacing Christofer Johnsson, and Sanctification.