Some background. I am aware that these guys aren't actually Afrikaner zef (the cultural equivalent in America is what we call "white trash") and that the entire act is South African hipster performance art. Who cares. It's a brilliant piece of performance art, with far more to say than "haute couture is awesome" (Lady Gaga) or "people are too uptight" (all of Sacha Baron Cohen's personas).
On a related note, fellow Americans, our worldview is way too small. I reiterate my position that races are nothing more than arbitrarily drawn lines in the sand.