Music: --Dan Hartman (music videos) - "Instant Replay" and "This Is It." --Queen (music videos) - "Fat Bottomed Girls" and "Bicycle Race." --Dudek Finnigan Krueger Band (music videos) - "Run For Cover" "Just One Minute More" and "Gonna Move." --Janis Ian (music videos, w/live vocals) - "That Grand Illusion," "The Bridge," "I Need To Live Alone Again," "Tonight Will Last Forever" and "Silly Habits." --The Disco Dance Dimensions (dance troupe, series regulars) - perform to "If My Friends Could See Me Now" Comedy: --Jimmie Walker (stand-up comedy) --Village Idiots (comedy troupe, series regulars) - "Rock Rap" music news & a Disco music sketch.