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British singer-songwriter George Michael of Wham!, during the pop duo's 1985 world tour, January 1985.'The Big Tour' took in the UK, Japan, Australia, China and the US. (Photo by Michael Putland/Getty Images)

British singer-songwriter George Michael of Wham!, during the pop duo's 1985 world tour, January 1985.'The Big Tour' took in the UK, Japan, Australia, China and the US. (Photo by Michael Putland/Getty Images)

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Wham! in the south of France 1984

Wham! in the south of France 1984

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George Michael perform on stage at the Freddie Mercury Tribute Concert for AIDS Awareness at Wembley Stadium, April 20th 1992. (Photo by Michael Putland/Getty Images)

George Michael perform on stage at the Freddie Mercury Tribute Concert for AIDS Awareness at Wembley Stadium, April 20th 1992. (Photo by Michael Putland/Getty Images)

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George Michael performs at Earl's Court. (Photo by Rune Hellestad/Corbis via Getty Images)

George Michael performs at Earl's Court. (Photo by Rune Hellestad/Corbis via Getty Images)

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LONDON, UNITED KINGDOM - MAY 11: George Michael attends a press conference to announce details of a new tour at The Royal Opera House on May 11, 2011 in London, England. (Photo by Neil Mockford/Getty Images)

LONDON, UNITED KINGDOM - MAY 11: George Michael attends a press conference to announce details of a new tour at The Royal Opera House on May 11, 2011 in London, England. (Photo by Neil Mockford/Getty Images)