For real?

I am convinced that these guys are either 100% for real and some producer with a sense of humor picked them up and said "I will help you complete your vision" or they are just brilliant actors, possibly the most brilliant. Anyone have the details on these guys, I heard they just signed with Interscope, are they the rap version of Flight of The Conchords?

From Wikipedia:
"Die Antwoord (Afrikaans: "The Answer") is a Zef-Rap act from Cape Town, South Africa consisting of three members, Ninja, Yo-Landi Vi$$er and DJ Hi-Tek.The band self-identifies as a melange of several diverse cultures all mixed into one"

"Die Antwoord performs "Zef" music, Zef being an Afrikaans term which loosely translates to the American equivalent of Redneck. Their lyrics are performed in both Afrikaans and English"

"lead vocalist Ninja (born Watkin Tudor Jones) was a part of South African hip-hop scene for many years, ... He is known for adopting different stage personas. In the case of Die Antwoord his persona is Ninja: a hyper violent character who is very different from his previous incarnations."

Apparently their video was so big that it crashed the servers in Africa that were hosting it and they had to move their hosting to the US. I'm still not sure if it's serious, horror show or funny. You watch and you tell me.