The Merry Old Land of Oz

This Australian video is too weird and wildly clever and funny.  The less said, the better, but it will become clear soon enough. 

I haven't found a clear explanation of how this came about, but -- I believe that the video is by Samantha May behind the camera who is the one talking to the horses.  And after it was posted, a fellow named Ethan, who goes by Ozzy Man, added the rest later.  And they deserve lots of credit, even if the work was done separately, to make it come across seamlessly as if written as a piece.  There's a third voice, though it's unidentified -- but I think it may also be Ozzy Man.