Miriam Makeba & Harry Belafonte – Malaika
https://www.youtube.com/watch?v=5l9rg4A2cp0
Off their Grammy-winning joint album, "An Evening with Belafonte/Makeba."
Yes, Belafonte sang in (Tanzanian or Kenyan) Swahili here.
https://en.wikipedia.org/wiki/Malaika