Me & Horsa sorted out our little emotional bump, and I changed my mind and now I think I can positively contribute to this thread.
So does anyone like acapella ensembles? They are like small choirs but not only they sing traditional SATB (plus occasionally couple more diverse voices) arrangements, but also add beat-boxing (i.e. pseudo-instrumental accompaniment) to their performances. The best example of such in US is Pentatonix. These guys are phenomenal in particular Kevin. Everyone has likely heard of them.
Has anyone herd of such ensemble in Australia? The most famous one is The Idea Of North. I know these guys very well, because they are the teachers in my choir. They sing all sort of stuff, from medieval Gregorian chants up to modern jazz. Kai (their BBoxing guy) is incredible. He thought us how to do it. I did not realise how much trickery we are able to perform with our voice in front of a mike to achieve interesting effects. Here is their interpretation of a beautiful song by Tim Minchin (a famous contemporary OZ composer/singer). Very sentimental song, that makes most emotionally engaged to cry. Enjoy.
A quizz for those who don't know: who is the musical leader of the group? Or let's put it this way: forget about the pictures (that can create bias) but say which voice (SATB or BBox) sounds like a "leading voice" in this recording? Then you can lookup who said voice belongs to and if s/he is indeed the formal leader of the group.