- Oh, Lady Be Good! is a 1924 song by George and Ira Gershwin from the Broadway musical Lady, Be Good!
- It was introduced by Walter Catlett in the original show, which starred Fred and Adele Astaire.
- The tune quickly became a jazz standard and a hallmark of 1920s Broadway and the early swing era.
- Early 1924–1925 recordings include Carl Fenton and His Orchestra, Paul Whiteman and His Orchestra, and Cliff Edwards; Ella Fitzgerald’s 1947 recording is noted for a famous scat solo, and her 1959 Gershwin Songbook arrangement by Nelson Riddle helped cement its status.
- The song also appears in the 1941 film Lady Be Good, though the film is unrelated to the musical.
- In the musical, the number is performed in Act I by J. Watterson Watkins and a chorus; the story follows penniless siblings Dick and Susie Trevor and their romantic entanglements.
- Genre: show tune and jazz standard.
