Yep, Lou Gossett. In the early sixties he was appearing on Broadway in Raisin In The Sun. Folk was starting to blossom, and he sang at hootenannies (open mikes for you younger folks) at the Gaslight Cafe. He did "It takes a rock and a gravel, uh, huh! to make a solid road, uh, huh!" He's a lot better actor than a blues and folk singer. :-)

Jerry