"Day Dream" is a jazz standard composed by Billy Strayhorn with lyrics by John Latouche and written in 1939.
[2][1] Duke Ellington was credited as co-composer on the label of the original 78 RPM release, though he is not generally considered to be one of the song's creators.
On March 23, 1939, Duke Ellington and his orchestra boarded the SS Île de France for a spring tour of Europe.
Strayhorn was working for Ellington at the time but was allowed to remain at his Harlem residence.
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