Ladysmith Black Mambazo have a whole bunch of guys singing bass. That's the secret to their success. Okay, Paul Simon "found" them, and that's been the secret to their success in what we loosely term "the West." By 1986, though, when Ladysmith Black Mambazo recorded and performed with Simon, they already had more than 20 albums in their native South Africa. Now they have more than 50 albums. They never stop touring, and they've outlasted the racist apartheid system under which the older members grew up. They're still ambassadors to South African culture. And they make people happy—boldly, unironically, and enthusiastically. by Andrew Hamlin