"When I Fall in Love" is a popular song, written by Victor Young (music) and Edward Heyman (lyrics). It was introduced in the film One Minute to Zero. Jeri Southern sang on the first recording released in April 1952 with the song's composer, Victor Young, handling the arranging and conducting duties. The song has become a standard, with many artists recording it; the first hit version was sung by Doris Day released in July 1952.

The version by Rick Astley was released on November 30, 1987, coinciding with the 30th anniversary of the release of Nat King Cole's version of the song. This single is mainly remembered for a closely fought contest for UK Christmas number one. Rivals EMI hoping to see their act, Pet Shop Boys, reach number one, re-released the version by Nat King Cole. This led to a slow down of purchases of Astley's version, allowing Pet Shop Boys to reach the coveted top spot. Despite selling over 250,000 copies and gaining a Silver certification from the BPI, it peaked in the UK at number 2 for two weeks. The re-release by Nat King Cole reached number 4. Since the single was released as a double A-side, the other half of the single was "My Arms Keep Missing You", which was successful in its own right in Europe.