George Michael’s longtime manager revealed his cause of death on Sunday. Michael Lippman told The Hollywood Reporter that the singer's cause of death was heart failure.

Lippman told the publication that received a call on Sunday morning, alerting him that the “Last Christmas” singer had been found "in bed, lying peacefully."


The manager added, ”I’m devastated.” He also explained that while the death was unexpected, that there was "no foul play whatsoever." The autopsy have yet to be released.

Yesterday Lippman gave a statement to the BBC, ”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."

The Thames Valley Police released a statement yesterday explaining that officers were called shortly before 2 p.m. on Christmas Day. The statement read: "Sadly, a 53-year-old man was confirmed deceased at the scene. At this stage the death is being treated as unexplained but not suspicious. A post mortem will be undertaken in due course. There will be no further updates from Thames Valley Police until the post mortem has taken place."


Celebs, including Sarah Michelle Gellar, were quick to pay tribute to Michael on social media. The Buffy star got more than a little flack by confusing Michael's song lyrics with Boy George, though.

"Do you really want to hurt me? I guess you do 2016 #ripboygeorge," she wrote before realizing her mistake. "Just as sad when you get the correct information #ripGeorgeMichael thank you to everyone who corrected me - it’s still so sad," she followed up. “And for the record yes I completely know the difference between Boy George and George Michael- I heard incorrectly. My intentions were good. This is usually why I don’t comment on public matters, but it all seems so sad on Christmas. Lesson learned," she added.

Here are some other celeb rememberances:
    Elton John: "I am in deep shock. I have lost a beloved friend — the kindest, most generous soul and a brilliant artist. My heart goes out to his family, friends and all of his fans.

    Madonna: "Farewell My Friend! Another Great Artist leaves us. Can 2016 F--k Off NOW?"

    Ellen: "I just heard about my friend @GeorgeMichael's death. He was such a brilliant talent. I'm so sad."

    Lindsay Lohan: "My love. My spirit and my heart is with you and your loved ones. In your beautiful words — 'I think you're amazing.' You're my friend for saying you would sing at my wedding.... we will speak through our prayers always — i have you as an angel above. I love you darling. Thank you for inspiring so many true people. Angel."

RIP George.