The 53-year-old is said to have died peacefully at this home earlier this afternoon, after emergency services were called shortly after 1pm.
He rose to fame as a member of Wham! who's hit Last Christmas still dominates the charts today.
In a statement, the star's publicist said: "It is with great sadness that we can confirm our beloved son, brother and friend George passed away peacefully at home over the Christmas period.
"The family would ask that their privacy be respected at this difficult and emotional time. There will be no further comment at this stage."
More to follow