- May 2 John Cage's "Water Music" (for a solo pianist, using a piano, a radio, whistles, water containers, and a deck of cards) premieres in New York City
- May 3 "Call Me Madam" closes at Imperial Theater NYC after 644 performances
- May 8 Revival of Eubie Blake and Noble Sissle's musical "Shuffle Along" opens at Broadway Theater, NYC; runs for 4 performances
Of Thee I Sing
May 8 Revival of George Gershwin, Ira Gershwin, George S. Kaufman and Morrie Ryskind's musical political satire "Of Thee I Sing", directed by Kaufman, opens at Ziegfeld Theater, NYC; runs for 72 performances