Diablo Swing Orchestra is a Swedish avant-garde metal band from Stockholm. The band was formed in 2003. The origin of the name of the band is related on their website. The tongue-in-cheek back-story recounts a historically questionable ancestral story beginning in 16th century Sweden. Supposedly, ancestors of the band members performed orchestral works in defiance of the ruling church at the time (possibly in reference to the newly installed protestant Lutheran national church, in power during the mid and late 16th century).