"Why Do Fools Fall in Love" is a song that was originally a hit for early New York City-based rock and roll group Frankie Lymon & the Teenagers in January 1956. It reached No. 1 on the R&B chart, No. 6 on Billboard's Pop Singles chart, and number 1 on the UK Singles Chart in July.

The song helped to make Frankie Lymon a household name and would make him a rock and roll pioneer.

The Canadian group The Diamonds also did a more traditional doo wop version that came out the week after Lymon's, in March 1956. This version spent 19 weeks on the Billboard chart, topping out at No. 12.

The song was ranked #314 on the Rolling Stone magazine's list of The 500 Greatest Songs of All Time.

The song was the first hit recording made in the Bell Sound Studio in New York City. It was recorded in November of 1955.

In late 1955, The Teenagers (at that time calling themselves The Premiers) auditioned a song called "Why do Birds Sing So Gay?" for George Goldner, recording producer and owner of Gee Records. Herman Santiago, tenor of the group, had written the song based on a line from some love letters given to the guys by a tenant in bassist Sherman Garnes' apartment building. One of them featured the words "Why do birds sing so gay?," which fit in with lyrics of other songs that Herman had been writing based on a 1-6-2-5 chord pattern. So Herman worked with it, creating a song for Herman Santiago to lead, and adjusting the harmony to take advantage of Frankie Lymon's high tenor/soprano. Along the way, Herman changed some of the lyrics. During the audition Frankie's voice stood out and, at Goldner's suggestion, the lead in subsequent recording sessions was given to Frankie. Frankie did some improvising and re-created the melody to match his own style. According to Jimmy Merchant, what happened at the recording session was a combination of "Frankie's singing ability coupled with George Goldner's special ability to bring out the best in Frankie."

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