George Michael's partner shares the moment he discovered the singer's dead body in bed.

A day on from his untimely death, George Michael‘s boyfriend has shared the moment he found his partner lifeless in bed on social media.

Tweeting about the Christmas Day tragedy, Fadi Fawaz wrote, “ITs a xmas i will never forget finding your partner dead peacefully in bed first thing in the morning.. I will never stop missing you xx.”

The Australian hairdresser and photographer, who had been dating Michael for four years, also updated his Twitter bio to read, “I will never stop missing you xxx.”

Fawaz said he found Michael when he visited his home before the pair went for their Christmas lunch together.

“Everything had been very complicated recently, but George was looking forward to Christmas, and so was I,” he told the Telegraph.

53-year-old Michael (born Georgios Kyriacos Panayiotou) was first found unresponsive in his Oxfordshire home by Fawaz on Christmas morning. Less than an hour later he was pronounced dead.

While authorities are yet to confirm the cause of death, the Wham! singer’s manager,  Michael Lippman, has told The Hollywood Reporter that he died of heart failure.

According to The Daily Mail, Kenny Goss, Michael’s ex-partner of 13 years, has also spoken out, saying he is “heartbroken over the loss of his “dear friend and long-time love.”

“He was a major part of my life and I loved him very, very much,” Goss said.

Tributes from friends and fans around the world have also begun to flood in.

Upon hearing the news, Michael’s Wham! bandmate and longtime friend Andrew Ridgeley tweeted, “Heartbroken at the loss of my beloved friend Yog. Me, his loved ones, his friends, the world of music, the world at large. 4ever loved. A xx”

Madonna shared the sentiments of many when she tweeted, “Farewell My Friend! Another Great Artist leaves us. Can 2016 F**K Off NOW?”

Elton John posted an image of the two together, alongside the caption, "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 and all of his fans. @GeorgeMichael #RIP."

Comedian James Corden shared his grief, tweeting, "I've loved George Michael for as long as I can remember. He was an absolute inspiration. Always ahead of his time."

Earlier this year, Corden revealed Michael had been the inspiration for his now highly successful Carpool Karaoke skit, telling late-night host Stephen Colbert, "My original idea was to pick George Michael up from prison in a car, and then we realised maybe we’ll lose the prison aspect. But what if there’s still some fun for me and George to be in the car and we’ll sing some Wham! songs?

Corden said, "There was something just very joyful about it.”