Welle: Erdball (often abbreviated as W:E) is a group from Germany often credited[citation needed] with being the pioneers of bitpop. The heavy use of the Commodore 64's SID sound chip makes their sound instantly recognizable. Their sound is reminiscent of electronic music pioneers Kraftwerk. The name literally means "Wave: Earthglobe", and in fact comes from a German radio play called "Hallo! Hier Welle Erdball!". Their logo is a Trabant logo turned around.