Stop what you're doing and listen to this... the whole thing. Don't be put off by the odd little cat in the beginning. This is amazing. (And it's as though someone asked ChatGPT to compose a Squirrel Nut Zippers song)
It's an entirely unplanned song. Someone starts, then the next random person picks it up and add a bit. The song you hear is spontaneous emergent order... and it's absolutely fantastic.
The lyrics the women sing is Nat King Cole's "Nature Boy".
And you're welcome!