Die Antwoord On David Letterman: South African Rappers Perform 'I Fink You Freeky' (VIDEO)

Die Antwoord took their consciously unnerving act to a mainstream audience Monday night -- the late-night television crowd. For those who'd never been exposed to the South African rappers before, their appearance on David Letterman may have been slightly terrifying, a sentiment shared by some South Africans who are uneasy with the trio representing their nation abroad. For the rest of us, this was a tamer version of the shock rappers we've come to know: Yo-Landi looked as bug-eyed as always in a pair of black contacts and long white t-shirt (Alexander Wang?), DJ Hi-Tek wore a deformed face mask, and Ninja danced frantically in a orange jumpsuit to their clubby single, "I Fink U Freeky," off their just-released album Ten$ion.

Letterman seemed at a loss for a moment when he came up to greet the group after their performance. He recovered with a few words that could be taken as praise, or not: "Well, there's your halftime show!"

Yolandi and Ninja remained unblinking behind him.