Biography
Siivouspojat is a finnish humor band (or as the founders say it: a project, not an actual band) who has acted since the founders were 15 years old. Songs of Siivouspojat can be downloaded from finnish amateur musicians' site located at: http://www.mikseri.net/artists/siivouspojat.110818.php.
Biography text from Last.fm, available under CC BY-SA.