On social media recently, the Inkabi Nation record label boss, Big Zulu, posted a video of him teaching his friend Sjava how to drive his McLaren. In his caption, he wished him a happy birthday.

The first kings of Zulu wore lard cans for crowns and carried banana stalks as scepters. Jubilee-singers flanked the king, with Mr. Big Stuff and the Witch Doctor in grass-skirts and black face in ...