The Most Happy Fella is a 1956 musical with a book, music, and lyrics by Frank Loesser. The story, about a romance between an older man and younger woman, is based on the 1924 play They Knew What They

Heidi Blickenstaff is an American actress and singer based in New York City best known for playing a version of herself in the musical during its Off-Broadway and Broadway runs, as well as for origina