Singer George Michael has died at his home at the age of 53. The star, who launched his career with Wham! in the 1980s and had huge success as a solo performer, "passed away peacefully" on Christmas Day in Goring, Oxfordshire, his publicist said. His manager, Michael Lippman, said he had died of heart failure. Former Wham! bandmate Andrew Ridgeley said he was "heartbroken at the loss of my beloved