Plot: -The Righteous Brothers - ""Hello Rock 'n' Roll""; medley #1 (""Soul and Inspiration,"" ""Unchained Melody,"" ""You've Lost That Lovin' Feelin'"" and ""Ebb Tide""); ""Roberto and Bill""; ""Lighten Up""; medley #2 (""Little Latin Lupe Lu,"" ""Koko Jo"" and ""My Babe""); medley #3 (""Swing Low Sweet Chariot,"" ""Swing Down Chariot,"" ""Down by the Riverside"" and ""Oh Happy Side"") & ""Rock 'n' Roll Loser. "" --The Righteous Brothers and Paul Williams - ""Mr