Die Antwoord is a rap-rave group from South Africa that has gained a strong following from their online videos and atypical high-speed, high-pitched lyrics. They're interesting to listen to and interesting to look at: in person, Yolandi is diminutive and soft-spoken with an edgy white blonde hairstyle. Ninja is towering and tattooed, very expressive with his face and hands. They have gold-capped teeth. They're animated and tend to finish each other's sentences. And they're full of great stories.

Here's one: Ninja and Yolandi...