just sat down on a plastic milk carton and started wailing "Freedom" for everyone.

Amazing.

..."Motherless Child" but it's pretty well accepted that he was winging it.
He had no more material & the stage management asked him to stretch. So, he went back on started freewheeling.
The thing I'm amazed at when I see this are how huge his hands are. His thumb is as long as my middle finger.
Watch his playing! He can play an over the top barre chord because his thumb is so long.
Definitely something I can't do