Guitarist Pete Townshend performing with English rock group The Who in Felixstowe, Suffolk, 9th September 1966. Behind him is drummer Keith Moon (1947 – 1978). (Photo by Chris Morphet/Redferns/Getty Images)
UNITED KINGDOM – AUGUST 01: WEMBLEY STADIUM Photo of BONO and U2, Bono performing live onstage on PopMart tour, playing Gretsch 6119 Chet Atkins Tennessean guitar (Photo by Patrick Ford/Redferns)
The Beatles answer questions for newsmen and journalists in New York after their arrival for their first tour of America. Left to right: Paul McCartney, Ringo Starr, George Harrison and John Lennon. 7th February 1964. (Photo by Daily Mirror/Daily Mirror/Mirrorpix via Getty Images)
American folk rock group The Mamas and the Papas, 15th June 1966. From left to right, they are record producer Terry Melcher, band members John Phillips, Cass Elliot and Denny Doherty, and record producer Lou Adler. (Photo by Watson/Express/Hulton Archive/Getty Images)
INGLEWOOD – FEBRUARY 19: Prince performs live at the Fabulous Forum on February 19, 1985 in Inglewood, California. (Photo by Michael Ochs Archives/Getty Images)
