Music: --Rob Grill - "Rock Sugar," "Feel The Heat," "Strangers" and "Where Were You When I Needed You?" --The O'Jays (lip-sync) - "Forever Mine," "Get On Out and Party," "Sing A Happy Song," "I Want You Here With Me" and "Use Ta Be My Girl." --Janis Ian (music video) - "Fly Too High." --Roxy Music (music video) - "Angel Eyes." --The Disco Dance Dimensions (dance troupe, series regulars) perform to "Greased Lightning" from the 'Grease' soundtrack. Comedy: --Paul Mooney (stand-up comedian) --The Village Idiots (comedy troupe, series regulars) - sketches: (1) & (2) 2-part Summer camp sketch; (3) "Love Songs For Short People" record offer.