History of the song according to The Billboard, September 28, 1940 issue, page 34: Four years ago (1936) "Fools Rush In" was known as "Shangrila," composed by Rube Bloom and introduced in one of the production numbers at the Chez Paree, Chicago... Little was heard of it until this past summer when Rube played it for Bregman, Vocco and Conn, New York music publishers, who suggested that new lyrics be written... Johnny Mercer was called in and he supplied the words, which have been widely accepted by the public... In 1963, Rick Nelson recorded his version, which was included in his Rick Nelson Sings "For You" LP and was an enormous hit, reaching #12 on the Billboard pop chart and #24 on the Hot R&B Singles chart... This recording became the highest charting single version of this song...