- Apr 1 30,000 attend Mar Y Sol rock concert, Vega Baja, Puerto Rico
- Apr 9 Jule Styne and Bob Merrill's musical "Sugar", a musical adaptation of 1959 film "Some Like It Hot" starring Robert Morse, Tony Roberts, and Elaine Joyce, opens at Majestic Theater, NYC; runs for 506 performances
- Apr 14 Howard Dietz and Arthur Schwartz's musical review "That's Entertainment" opens at Edison Theater, NYC; runs for 4 performances
Music Concert
Apr 15 Barbra Streisand, James Taylor, Carole King, and Quincy Jones perform benefit concert for George McGovern for President campaign at the Forum in Inglewood, California
- Apr 16 Howard Dietz and Arthur Schwartz's musical review "That's Entertainment" closes at Edison Theater, NYC, after 4 performances
Lost in the Stars
Apr 18 Revival of Kurt Weill and Maxwell Anderson's musical "Lost in the Stars" based on the novel "Cry the Beloved Country" by Alan Paton, opens at Imperial Theater, NYC; runs for 39 performances
- Apr 19 "Don't Bother Me, I Can't Cope" opens at Playhouse NYC for 1,065 performances
Lord Byron
Apr 20 Virgil Thomson's final opera, "Lord Byron", with libretto by Jack Larson, first performance at Lincoln Center, New York City
Music History
Apr 27 NYC Mayor John Lindsey appeals that John Lennon not be deported
Country Singers
Jazz Singers
Opera Singers
Pop Singers
Rappers
Rock Singers