LONDON - In a major turn of events, a bombshell ambulance report has revealed that Michael Jackson was lying dead in his bedroom for over an hour before paramedics arrived on the scene.

Jackson, 50, died from a heart attack after being given the sedative Propofol, following a cocktail of prescription pills, at his rented mansion in North Carolwood Drive, Los Angeles.

It is standard procedure for US paramedics to fill out an F-902M form after attending a fatality.

While the ‘Thriller’ hitmaker’s report was completed over seven weeks ago, it was kept from the public as detectives were investigating his death.

The standard emergency call sheet details the actions of paramedics on site and their observations of the patient.

It will show that a series of tests proved the King of Pop was clinically dead long before medical help turned up at his LA home.

Paramedic chiefs and staff at UCLA hospital have revealed the details of the report, which was overseen by three specialist paramedics.

And the report made it clear that Michael Jackson had already got no pulse, he was Flatlined - showing no sign of heart activity and had even stopped breathing.

But most tellingly, the star’s body showed clear signs of what medics call lividity - when the blood drains to the bottom of the body after the heart stops.

The shocking revelations have questioned Jackson’s personal physician Conrad Murray’s claims that the singer had a faint pulse at the house, and so would have benefited from CPR on the way to the hospital.

But Dr. Steven Hoefflin, a close friend of Jackson and who spoke with the permission of his mother Katherine, has confirmed the details on the vital paperwork.

“I’ve spoken to a chief in the fire department who told me Michael was dead when they arrived,” the News of the World quoted Hoefflin, 63, as saying.

“He had no pulse and was not breathing. They gave him an electro-cardiogram but he was flatlined. They say he even had lividity, which meant the blood had sunk to the back, indicating his heart had stopped a couple of hours earlier.

“This is the most important aspect of the report as it means he must have been dead for over an hour, probably longer,” he added.

Another doctor, Hilary Jones, confirmed: “A body would have been dead for a minimum of three hours for lividity to show. It is rare to see this in an ambulance report. That means Michael Jackson had been dead for some hours. Normally paramedics would never try to resuscitate a body with lividity because they would know the person is dead.”

Hoefflin also revealed: “The medics wanted to pronounce him dead there and take him to the Coroner’s department.”

“But I was told Dr Murray wanted to work on him - he carried on doing CPR and insisted he needed hospital treatment. He continued giving Michael CPR all the way to UCLA and even in the emergency room.

“I have spoken to a senior doctor at UCLA, who said Murray insisted they work on him there - but they knew he was dead. Murray was in a state - he was freaked out by the situation. If Michael died at home then the case would be automatically referred to the Coroner’s Office, and that would mean a lot of investigations.

“However if he passed away in hospital - that would not be the case and an autopsy might not be ordered.

“Dr Marshall Morgan, the chief of the medical staff at UCLA Medical Center, was suspicious about the case and contacted the Coroner anyway,’ added Hoefflin.

Hoefflin also said: “This F-902M form is a bombshell key to the investigation.” (ANI)