Billboard flashback from Radio Caroline May 1980 Elton John Robert Dupree Boz Scaggs Bette Midler Bob Seager And The Silver Bullet Band Gary Numan Christopher Cross Linda Ronstadt The Brothers Johnson Ambrosia Dr Hook Kenny Rogers And Kim Carnes Air Supply Air Supply's founding members met on 12 May 1975,[2] while rehearsing for the Australian production of the musical Jesus Christ Superstar.[3][4] Chrissie Hammond portrayed Mary Magdalene, while Russell Hitchcock and Graham Russell were in the chorus.[5] With the show they toured Australia and New Zealand for 18 months.[6] In 1958, as a three-year-old, English-born Hammond had migrated to Melbourne with her family, including older sister Lyndsay Hammond, who also became a rock singer Lipps Inc Blondie