Buzzed-about South African soprano Pretty Yende at the Kennedy Center

For years, Vocal Arts DC has been championing promising singers, such as the now-celebrated artists Renée Fleming, Thomas Hampson and Matthias Goerne. On Thursday night, the group put another winner in the spotlight -- soprano Pretty Yende. She performed with American pianist Kamal Khan, who now lives in her native South Africa, at the Kennedy Center's Terrace Theater.