swinging on nothing

For years I thoughtthis was Billie Holiday and Louis Armstgrong number and spent alot of time looking for it. Come to find out it is not. But I have always loved this jazz piece and boy can that big gal move.
The reason I believed it to be a lady day song I was watching some sort of PBS show and they were dealing with Billie and I dont know if I fell asleep or what but I heard this song and it was implanted in my brain....strange but true.