British pop-star George Michael, known as a former member of Wham!, died on Christmas Day.

What do we know about the singer’s passing?

The singer was found within his home in Goring in Oxfordshire during the Christmas holiday. Michael was 53 at the time of his passing. The singer’s manager, Michael Lippman, confirmed in a released statement that the cause of death was heart failure. According to a released statement, made when there was currently no known cause of death, investigating police said that while Michael’s death was unexpected, there is no reason to believe suspicious activity took place.

It is also believed that he died peacefully. At this time, however, results of the autopsy have not been revealed to the public.

Lippman said in a released statement that the singer's family wants keep their privacy during this "difficult and emotional time." Many celebrities have taken to social media to mourn Michael's passing, such as Madonna and Elton John. Andrew Ridgeley, who is Michael's former bandmate, released a statement referring to the singer as a "beloved friend."

Michael planned to release more material before his death

The singer was born Georgios Kyriacos Panayiotou in East Finchley, London, on June 25, 1963.

His parents were a Greek Cypriot restaurant owner and an English dancer. Michael first formed a band with Ridgeley in 1979, under the name, the Executive, although the two found greater fame under the Wham! title, in the 80's. Michael first sparked a solo career with the single “Careless Whisper,” although the song was credited as being from Wham! in some countries, in 1984.

Other popular singles from the singer include “Faith,” “One More Try,” and the controversial, “I Want Your Sex,” which had been accused of promoting casual sex in a time heightened by the AIDS epidemic, an implication Michael denied in promotions for the song.

The singer continued singing well into the turn of the millennium, such as with the 2002 release, "Shoot the Dog," which was reportedly intended to serve as a protest of the invasion of Iraq. Before his passing, the singer planned a 2017 reissue of his album, "Listen Without Prejudice Vol. 1," that was said to have been an expansion of the original, and was also attached to a documentary of his life.

For many of his fans, Michael’s passing on the Christmas holiday was notably timely, as he is known for singing the vocals on the popular Christmas song, “Last Christmas,” which was released during his time in Wham!

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