Conversation so far:
who sang the sun has got his hat on
The Sun Has Got His Hat On was originally recorded by Ambrose and his Orchestra, vocals by Sam Browne, and by the Henry Hall BBC Orchestra, vocals by Val Rosing.
when did the sun has got his hat on come out
The Sun Has Got His Hat On was originally recorded in 1932.

Question: is there anything notable about the song
Self-contained rewrite: is there anything notable about the sun has got his hat on