Roger Whittaker - 'Sing Hallelujah.' Pickettywitch - 'Summertime Feeling.' J. Vincent Edwards - 'Sounds of Tomorrow.' Roger Whittaker - 'I Don't Believe in If Anymore.' Sandie Shaw - 'Show Your Face.' Roger Whittaker & Sandie Shaw - 'Don't Let the Rain Come Down.' (Ginette Reno and J. Vincent Edwards also join in). Hines Hines and Dad - 'Put a Little Love in Your Heart.' Ginette Reno - 'I've Got to Have You.' The Blue Mink Rhythm (with Roger Coulam on the organ, Herbie Flowers on bass guitar, Alan Parker on guitar and Barry Morgan on drums) - 'Whole Lotta Love'. Roger Whittaker – ‘an unidentified whistling song.’ Nina van Pallandt - 'Someday.' Roger Whittaker - 'Google Eye' & 'My Song' All the guests and studio audience - 'Aquarius (Let the Sunshine In)’.