Michael Jackson once predicted that he would suffer an untimely death and "end up" just like Elvis Presley, Lisa Marie Presley has revealed.

Presley -- Elvis' daughter and Jackson's ex-wife -- said Jackson made the foreboding prediction during a deep life conversation about a year after the pair married in 1994.

"At some point he paused, he stared at me very intensely and he stated with an almost calm certainty, 'I am afraid that I am going to end up like him, the way he did,'' Presley wrote on her MySpace blog Friday.

"I promptly tried to deter him from the idea, at which point he just shrugged his shoulders and nodded ... he knew what he knew."

Presley's publicist has confirmed the blog's authenticity.

The pairing of the "King of Pop" with the daughter of a rock n' roll king made headlines around the world amid speculation that the marriage wasn't real.

But Presley moved to put those rumours to rest.

"Our relationship was not 'a sham' as is being reported in the press," Presley wrote.

"It was an unusual relationship yes, where two unusual people who did not live or know a '(n)ormal life' found a connection, perhaps with some suspect timing on his part.

"Nonetheless, I do believe he loved me as much as he could love anyone and I loved him very much."

Presley said she has moved on since the couple divorced in 1996, but she conceded that the news of his death has left her feeling "truly, truly gutted."

"All of my indifference and detachment that I worked so hard to achieve over the years (have) just gone into the bowels of hell, and right now I am gutted," Presley wrote, adding that she once thought she could "save" Jackson.

Later in the posting, Presley herself compares Jackson's death to that of her father, who died when she was only nine-years old.

Elvis passed away at age 42 at his Graceland mansion in Memphis, Tennessee, in August of 1977. Thought the cause of death was officially listed as an irregular heartbeat, the death has been persistently blamed on excessive prescription drug use.

Speculation of drug use

Similarly, there is growing speculation Jackson was taking powerful prescription painkillers before his death.

Brian Oxman, a former lawyer for Jackson, said Friday he was concerned about Jackson's use of painkillers, and claimed he warned the singer's family about possible abuse.

"I warned everyone, and lo and behold, here we are. I don't know what caused his death. But I feared this day, and here we are," Oxman said.

Oxman claimed Jackson had prescription drugs at his disposal to help with pain suffered when he broke his leg after he fell off a stage and for broken vertebrae in his back.

Celebrity website TMZ claims a close member of Michael Jackson's family told them the singer received a daily injection of Demerol, and the dosage he got Thursday was "too much" and that's what caused his death.

Singing legend Liza Minnelli also chimed in, saying Friday "when the autopsy comes, all hell's going to break loose, so thank God we're celebrating him now."

Around the world, meanwhile, waves of grief.

Heartbroken fans by the millions are paying tribute to the singer who smashed sales records, and defined the music of a generation.

They continue to lay flowers, and say silent prayers, at makeshift memorials outside his home, and at his star on the Hollywood Walk of Fame.

Jackson was planning a massive comeback with a series of 50 shows scheduled for London's O2 Arena -- which would have ended years of seclusion.

The 13-time Grammy-winner, who has sold more than 750 million albums over his career, had not embarked on a major tour since 1997.