Allan Sherman's biggest hit single was  a comic novelty to the tune of a short ballet and act 3 finale of what opera?
Allan Sherman Allan Sherman (born Allan Copelon; November 30, 1924 – November 20, 1973) was an American comedy writer and television producer who became famous as a song parodist in the early 1960s. His first album, "My Son, the Folk Singer" (1962), became the fastest-selling record album up to that time. His biggest hit single was "Hello Muddah, Hello Fadduh", a comic novelty in which a boy describes his summer camp experiences to the tune of Ponchielli's "Dance of the Hours". He is not to be confused with the songwriter Al Sherman, who, coincidentally, also died in the fall of 1973.
Le faucon (opera) Le faucon (English: The Falcon , Russian: Сокол ) is an "opéra comique" in three acts by the Ukrainian composer Dmitry Bortniansky with a French language libretto by Franz-Hermann Lafermière. It was first performed on 11 October 1786 at the Gatchina Palace in Russia by aristocratic amateur singers. The plot is borrowed from Boccaccio's "The Decameron" (Fifth Day, 9th tale) which also served as the basis for Pierre-Alexandre Monsigny's 1771 comic opera "Le faucon" (libretto by Michel-Jean Sedaine) (and later for Gounod's "La colombe").