The main theme by Victor Young is occasionally whistled by Robert Mitchum in the movie and was published as "When I Fall in Love" with lyrics by Edward Heyman. The song has become a standard, with many artists recording it, though the original hit version was the Doris Day recording issued in 1952. Another version was recorded by Nat 'King' Cole in 1956 on the Capitol LP, "Love Is the Thing". The single was released in the UK in 1957 and reached number 2 on the UK Singles Chart. Cole also sang it in Istanbul and he is the singer now most closely associated with the song.