It was introduced by Martha O'Driscoll (dubbed by Margaret Whiting) in the 1942 film Youth on Parade.
It was recorded by Harry James and his Orchestra with Helen Forrest on vocal on July 31, 1942. This was the last day of recording before the Musician Union's ban. The recording was issued on Columbia 36668 and became a number one hit on both the pop and the Harlem Hit Parade in the USA in early 1943. This version of the song can be heard in Woody Allen's movie Hannah and Her Sisters.
It seems to me I've heard that song before It's from an old familiar score I know it well that melody
It's funny how a theme Recalls a favorite dream A dream that brought you so close to me
I know each word, Because I've heard that song before The lyrics said "for evermore" For evermore's a memory
Please have them play it again And I'll remember just when I heard that lovely song before