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American model and actress Donyale Luna (1945-1979) pictured smoking a cigarette during rehearsals for the Rolling Stones Rock and Roll Circus at Internel television studio in Wembley, London on 10th December 1968. (Photo by Rolls Press/Popperfoto via Getty Images/Getty Images)

American model and actress Donyale Luna (1945-1979) pictured smoking a cigarette during rehearsals for the Rolling Stones Rock and Roll Circus at Internel television studio in Wembley, London on 10th December 1968. (Photo by Rolls Press/Popperfoto via Getty Images/Getty Images)

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English musician and guitarist with Rolling Stones, Brian Jones (1942-1969) pictured with American model and actress Donyale Luna (1945-1979) during rehearsals for the Rolling Stones Rock and Roll Circus at Internel television studio in Wembley, London on 10th December 1968. (Photo by Rolls Press/Popperfoto via Getty Images/Getty Images)

English musician and guitarist with Rolling Stones, Brian Jones (1942-1969) pictured with American model and actress Donyale Luna (1945-1979) during rehearsals for the Rolling Stones Rock and Roll Circus at Internel television studio in Wembley, London on 10th December 1968.  (Photo by Rolls Press/Popperfoto via Getty Images/Getty Images)

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Donyale Luna, who is one of the world's highest paid American models, hugs musician Brian Jones at rehearsal in Wembley, London, of the TV spectacular Rolling Stones Rock and Roll Circus. Asked if Brian was her current boyfriend, Donyale said: "We are very, very good friends." Both are appearing in the show, which will include stars from Sir Robert Fossett's Circus. (Photo by PA Images via Getty Images)

Donyale Luna, who is one of the world's highest paid American models, hugs musician Brian Jones at rehearsal in Wembley, London, of the TV spectacular Rolling Stones Rock and Roll Circus. Asked if Brian was her current boyfriend, Donyale said: "We are very, very good friends." Both are appearing in the show, which will include stars from Sir Robert Fossett's Circus.   (Photo by PA Images via Getty Images)

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American model Donyale Luna, 22, has turned her talents to film-making. The fashion model has made a dramatic impact as Oenothea, the sorceress, in Satyricon, which is soon to be released through United Artists. (Photo by PA Images via Getty Images)

American model Donyale Luna, 22, has turned her talents to film-making. The fashion model has made a dramatic impact as Oenothea, the sorceress, in Satyricon, which is soon to be released through United Artists.   (Photo by PA Images via Getty Images)

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American model Donyale Luna blows her nose on a tissue while in London with American journalist Steve Brandt. Their Canadian-born actor-producer friend Iain Quarrier (not pictured) is due to appear at Bow Street (London) Court after being charged for obstructing the police. (Photo by PA Images via Getty Images)

American model Donyale Luna blows her nose on a tissue while in London with American journalist Steve Brandt. Their Canadian-born actor-producer friend Iain Quarrier (not pictured) is due to appear at Bow Street (London) Court after being charged for obstructing the police.   (Photo by PA Images via Getty Images)