Louis Armstrong (1901-1971), U.S. jazz singer and trumpeter, appearing on the 'Kraft Music Hall' television show, filmed at the NBC studios in New York City, New York, USA, in June 1967. (Photo by David Redfern/Redfern/Getty Images)
GLASTONBURY, ENGLAND – JUNE 26: Paul Simon performs live on the pyramid stage during the Glastonbury Festival at Worthy Farm, Pilton on June 26, 2011 in Glastonbury, England. The festival, which started in 1970 when several hundred hippies paid 1 GBP to attend, has grown into Europe's largest music festival attracting more than 175,000 people over five days. (Photo by Ian Gavan/Getty Images)
American singer-songwriter Bob Dylan and British singer-songwriter David Bowie (1947-2016) attend a party to celebrate the release of 'Biograph,' Dylan's career retrospective box set, held at the Whitney Museum of American Art, in New York City, New York, 13th November 1985. (Photo by Vinnie Zuffante/Getty Images)
The Rolling Stones taken in the 1960s, from left to right, Brian Jones, Keith Richards, Mick Jagger, Bill Wyman and Charlie Watts.; (Photo by King Collection/Avalon/Getty Images)