At the peak of the song's success, a New York company used the melody in a commercial for Rokeach gefilte fish, arguing that the tune was an old Russian folk-tune and thus in the public domain. (The commercial included the line "The perfect dish, Rokeach Gefilte Fish" where the English-language song would go "Those were the days, oh yes, those were the days.") Raskin successfully sued and won a settlement, since he had slightly altered the tune to fit his lyrics and had taken out the valid new copyright.