American country music and gospel singer Jeannie C. Riley, UK, 20th November 1968. (Photo by William Lovelace/Daily Express/Hulton Archive/Getty Images)
American rock band The Doors mirror their looks for a photoshoot, 1967. They are vocalist Jim Morrison, keyboardist Ray Manzarek, drummer John Densmore, and guitarist Robby Krieger. (Photo by Mark and Colleen Hayward/Getty Images)
Royal Command Performance, 1963. The Beatles – pictured rehearsing for the Royal Command Performance at the Prince of Wales, tonight. Photograph by Randle. (Photo by Daily Herald Archive/National Science & Media Museum/SSPL via Getty Images)
CIRCA 1967: Rock and roll band "The Beach Boys" pose for a portrait in circa 1967. (L-R) Bruce Johnston, Mike Love, Carl Wilson, Dennis Wilson, Al Jardine. (Photo by Michael Ochs Archives/Getty Images)