The old guy getting out of the Cad limo at Vito's burial was indeed the old guy who sang at Connie's wedding. But he wasn't Nazorine. Nazorine was on the bandstand whooping it up when Mama sang, but he didn't sing. A nice, authentic FFC touch: Notice that the old guy, when he sings, keeps his glasses in the outside breast pocket of his suit coat--exactly where an old person would put them because he doesn't want to forget where else he might have put them.