"Why Do Fools Fall in Love" (initially "Why Do Birds Sing So Gay?") is a debut single by American rock and roll band Frankie Lymon & the Teenagers that was released on January 10, 1956. It reached No. 1 on the R&B chart, No. 6 on Billboard's Pop Singles chart, and No. 1 on the UK Singles Chart in July. Many renditions of the song by other artists have also been hit records in the U.S., including versions by the Diamonds (in 1956), the Beach Boys (in 1964), and Diana Ross (in 1981).
The song was included in Robert Christgau's "Basic Record Library" of 1950s and 1960s recordings—published in Christgau's Record Guide: Rock Albums of the Seventies (1981)—and ranked No. 314 on the Rolling Stone magazine's list of The 500 Greatest Songs of All Time. In 2001, the 1955 recording of the song on Gee Records was inducted into the Grammy Hall of Fame.