J.B.O.

German fun metal band, well known for their parodies of other artists' famous songs, although about half of their released material is self-written.

Almost all parodistic and humorous songs in German language that have ever floated around the internet have at one time or another been attributed to them. A good reference for songs not by J.B.O. is http://www.jbo-fans.de/htdocs/6-Xtras/Songs-die-nicht-von-JBO-sind.html