It Was So Good While It Lasted is a vocal pop number with lyrics, written by Andy Ackers and Ruth Poll. Its original recording was made by the Nat King Cole Trio, with Nat King Cole (1919-1965) credited as the original performer. Capitol Records issued it as Capitol 818, a 10-inch single whose reverse side was "Bang Bang Boogie". The recording is dated 1950 and is classed under jazz and pop, in a vocal style.
The song is not a standard. Later versions include a 1991 release by The Nat King Cole Trio and a recording by Helen Forrest. Ruth Poll's works list also associates the number with Nat King Cole, alongside her co-writer Andy Ackers.