Australian actress and singer Olivia Newton-John holds a press conference at the Inn On The Park, London, UK, 29th November 1978. She is starring in the 1978 film adaptation of the musical 'Grease'. (Photo by Keystone/Hulton Archive/Getty Images)
English singer-songwriter and pianist Elton John (left) performing at the Rocket Records launch party, Moreton-on-the Marsh, Gloucestershire, 26th April 1973. (Photo by Michael Putland/Getty Images)
LONDON, UNITED KINGDOM – APRIL 01: George Jones performs on stage at the Country Music Festival held at Wembley Arena, London in April 1981. (Photo by David Redfern/Redferns)
EDMONTON, ALBERTA, CANADA – Canadian Country Music Artist Lisa Brokop (Nashville)performs during the 30th Anniversary of Global Country Music Canada at Cook county Saloon. (Photo by Ron Palmer/SOPA Images/LightRocket via Getty Images)
American Disco and R&B singer Donna Summer (born LaDonna Gaines, 1948 – 2012) performs onstage at the Poplar Creek Music Theater, Hoffman Estates, Illinois, July 12, 1983. (Photo by Paul Natkin/Getty Images)
