George Michael left behind the complete songs of an album, but the fans will never have the opportunity to listen to them.
The creative partner of the musician, David Austen, revealed the existence of the secret vault of the songs.
He said the artist had completed clues waiting to be released, but he is not sure that "extraordinary" music is ever heard.
George Michael (in the picture) left behind an album of songs completed, mastered and mixed
Mr. Austen told the Daily Star: "There are some recordings that are extraordinary pieces of writing.
"They finished, they dominated, they mixed and they're sitting there."
The pop legend died on Christmas day two years ago after a remarkable career with Wham! and as a soloist.
The creative partner of the musician, David Austen (pictured), revealed the existence of the secret vault of the songs
But George Michael, who was a well-known perfectionist, only released two albums with the band and five soloists throughout his 35-year career.
It comes after it was revealed in July that the pop star allegedly suffered an overdose of GHB, a drug to relax the muscles, two years before his death.
The singer, 53, was found unconscious in a bathtub at his home in Highgate, north London after taking the Class C drug in 2014.
He was rushed to the hospital, where his agent said he was taking "routine exams."
This revelation came just a day after his former partner Fadi Fawaz made the sensational claim of the Wham! Star committed suicide at Chrismas Eve 2016.
A coroner concluded that he died as a result of natural causes at his cottage in Goring-on-Thames, Oxfordshire, on Christmas Day.
Coroner Darren Salter also said he suffered from dilated cardiomyopathy with myocarditis and a fatty liver.
But Fawaz, 45, insisted that his ex-boyfriend took his own life, after four more suicide attempts.
In a series of emails seen by the Sun, Fawaz writes: "It took five attempts … I'm tired and tired of people asking me what happened on Christmas Day.
It occurs after his former partner Fadi Fawaz (pictured with the star outside his home in North London in 2012) made the sensational claim of Wham! star committed suicide on Christmas Eve 2016
"Let me tell you, George died on his mother's birthday, so that could answer some questions."
A large sanctuary of George Michael has recently been knocked down from the outside of his Highgate mansion.
Fans placed flowers, framed photographs and candles outside their home, which is located in the exclusive Highgate Village, home of Jamie Oliver and Kate Moss, for more than a year.
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