Imre Kálmán was a Hungarian composer born on October 24, 1882, in Siófok, Hungary. He is best known for his operettas, a popular form of musical theater that combines singing and spoken dialogue. Kálmán's works often feature lively melodies and romantic themes, making them favorites in the operetta genre. Some of his most famous operettas include Die Csárdásfürstin (The Gypsy Princess) and Gräfin Mariza (Countess Mariza). Kálmán's music is characterized by its catchy tunes and rich orchestration, which have contributed to his lasting influence in the world of musical theater. He passed away on October 30, 1953, in Paris, France.