Mam'zelle Nitouche is a vaudeville-opérette in three acts by Hervé. The libretto is by Henri Meilhac and Albert Millaud. This story of a respectable musician, transforming himself into a songwriter at night, is partly inspired by the life of the composer of the piece Hervé, who as Florimond Ronger, his real name, was the organist at the important church of Saint-Eustache, Paris by day and wrote the music for and starred in satirical, irreverent operettas under a stage name at night.