George Michael (left) and Andrew Ridgeley of pop duo Wham! performing at their farewell concert, entitled 'The Final', at Wembley Stadium, London, 28th June 1986. (Photo by Michael Putland/Getty Images)

George Michael (left) and Andrew Ridgeley of pop duo Wham! performing at their farewell concert, entitled 'The Final', at Wembley Stadium, London, 28th June 1986. (Photo by Michael Putland/Getty Images)