who played jo on the facts of life
Nancy McKeon Nancy Justine McKeon (born April 4, 1966) is an American actress. She is best known for her role as Jo Polniaczek on the NBC sitcom The Facts of Life.
Gloria Loring In 1979 and 1980, Loring and then-husband Alan Thicke composed the theme songs to Diff'rent Strokes and The Facts of Life. There were two versions of the Facts of Life theme song that Loring sang.[3] One version was used from seasons two through six, and a second was used from seasons seven to nine.