The Comedian Harmonists were an all-male German close harmony ensemble that performed between 1928 and 1934. The group consisted of Harry Frommermann, Asparuh "Ari" Leschnikoff, Erich A. Collin, Roman
Comedian Harmonists (from left: Robert Biberti, Erich Collin, Erwin Bootz, Roman Cycowski, Harry Frommermann, Asparuh "Ari" Leschnikoff)