LIVERMORE, CA – DECEMBER 6: Gram Parsons of The Flying Burrito Brothers performs onstage at The Altamont Speedway on December 6, 1969 in Livermore, California. (Photo by Robert Altman/Michael Ochs Archives/Getty Images)
SEPTEMBER 1969: Married country singers Johnny Cash & June Carter Cash pose for a portrait at an event in September 1969 in California. (Photo by Michael Ochs Archives/Getty Images)
FRANKFURT, GERMANY – SEPTEMBER 14: Jim Morrison of The Doors performs in the street for a TV show on September 14, 1968 in Frankfurt, Germany. (Photo by Michael Montfort/Michael Ochs Archives/Getty Images)
BAKERSFIELD, CA – MAY 23: Singer Ron Dante of The Archies and Cuff Links performs onstage on May 23, 2015 in Bakersfield, California. (Photo by Scott Dudelson/Getty Images)
