I'm not sure of the year this commercial was done — late-sixties, early-seventies I suspect — but if you're around my age (64), you should be able to recognize a lot of the people in it. The National Urban Coalition got a whole mess o' stars together to sing "Let the Sunshine In."
I remember not being altogether sure of the message that was being "sold" here and I'm still not. But it's an impressive turnout…