Virtuoso A Capella Weirdness

This is way out on the extreme end of singing, but have a listen. I found the comments to be somewhat more entertaining than the performance itself. Does show that not all Canadians are boring, though...

And for something else in a similar vein or chord, here is Kurt Schwitters' Ursonate performed by Michael Schmid:

Yes, I know, sounds a bit tame in comparison.