Finntroll is a folk metal band from Helsinki, Finland. They combine elements of black metal and folk metal. Finntroll's lyrics are mostly in Swedish, the only exception being the song "Madon Laulu" on Visor Om Slutet. Finntroll's first singer Katla decided to use Swedish over Finnish since he was part of a Swedish-speaking minority in Finland and the sound of the language seemed to better suit the band's "trollish" outfit. Despite several vocalist changes, this tradition has since been continued.