Robert Plant photographed at his home, Jennings Farm at Blakeshall in Worcestershire, England, circa September 1979. Photos by Steve Wood.

Jimmy Page of Led Zeppelin playing his guitar with a violin bow at Earl's Court, London, May 1975. Photo by Michael Putland.

Robert Plant photographed by Elisabeth Buchmeyer Lewis, 1970.

Led Zeppelin at the Royal Albert Hall during their UK Tour on 9 January, 1970 in London, England. Photo by Mike Randolph.

Jimmy Page of Led Zeppelin on stage at the Olympia Stadium in Detroit, Michigan, January 31, 1975. Photos by Michael Brennan.

Robert Plant of Led Zeppelin backstage with manager Peter Grant at the Olympia Stadium in Detroit, Michigan, January 31, 1975. Photos by Michael Brennan.

Jimmy Page and Robert Plant of Led Zeppelin as they walk backstage at Madison Square Garden, New York, July 1973 — The Song Remains The Same (1976) dir. by Peter Clifton and Joe Massot.

Jimmy Page of Led Zeppelin performing on stage at Earl's Court, London, May 1975. Photo by Watal Asanuma.

Jimmy Page of Led Zeppelin performs onstage at the Boston Tea Party in 1969.

Jimmy Page at his daughter Scarlet’s birthday party, 1977.

Robert Plant of Led Zeppelin driving at his home, Jennings Farm at Blakeshall in Worcestershire, England, circa September 1970. Photos by Mike Randolph.

Led Zeppelin photographed by Chris Walter, 1969.

Robert Plant of Led Zeppelin stands, a can of 7UP soda in one hand, with his daughter Carmen, who wears a 1973 Zeppelin tour t-shirt, at the Knebworth Music Festival, Knebworth, Hertfordshire, August 1979. Photo by Ian Cook.

Jimmy Page of The Yardbirds poses for a portrait before their show at Green's Pavilion in Lakeview Park on August 10th 1966 in Manitou Beach, Michigan. Photo by Michael Ochs.

Robert Plant and Jimmy Page of Led Zeppelin performing on stage at Earl's Court, London, May 1975. Photo by Watal Asanuma.