ENCINO — The Rev. Al Sharpton will be at the Encino home of Michael Jackson’s family Monday to discuss a worldwide tribute and how to preserve the legacy of the King of Pop.

Jackson, who was 50, went into full cardiac arrest Thursday at his rented Holmby Hills estate, days away from the start of a sold-out series of 50 concerts in London. Paramedics were unable to revive him, and he was pronounced dead two hours later at UCLA Medical Center.

As the Rev. Jesse Jackson did earlier, Sharpton will meet with family members to plan a possible worldwide celebration of Jackson’s life.

Sharpton flew in from Atlanta on Sunday afternoon.

“Rev. Sharpton will discuss with the family ideas that people from around the world have sent him about how they would like to memorialize Michael Jackson,’’ said Rachel Noerdlinger, Sharpton’s executive assistant.

“I’m here to make sure Michael gets in death what he never got in life — he never got credit,’’ Sharpton told KCAL9 upon his arrival in Los Angeles.

“He was not a freak, he’s a genius,’’ he said. “He was not somebody who was eccentric, he was innovative and that innovation smashed barriers and he should be given a lot more credit than he’s been given.’’

Of Jackson’s family, Sharpton said they were “obviously shaken, but they seemed very determined to at all costs to preserve Michael’s legacy.’’

AEG Live, the Los Angeles-based entertainment conglomerate, was reportedly considering the idea of using some of the multi-million-dollar staging it had assembled for Jackson’s 50 “This Is It’’ concerts at the O2 Center in London for the public spectacle. Special effects coordinators and choreographers who were working on the “This Is It’’ show at AEG Live’s Staples Center may be used to put on the worldwide tribute.

An AEG spokesman said it was “much too soon’’ to discuss any such plans.

Jackson admitted to being addicted to prescription painkillers in the 1990s, and rumors have been swirling that he was given a shot of the powerful painkiller Demerol shortly before he died.

His in-house doctor, Conrad Murray, was interviewed by Los Angeles police detectives for three hours Saturday, and his lawyer, Edward Chernoff, told the Los Angeles Times that Murray denied giving Jackson any painkillers.

“There was no Demerol. No OxyContin,’’ Chernoff told the newspaper.

The lawyer said Dr. Murray told investigators he “fortuitously’’ entered Jackson’s bedroom Thursday and found the pop star unconscious.

“He checked for a pulse,’’ the lawyer told The Times. “There was a weak pulse in his femoral artery. He started administering CPR.’’

Chernoff said Dr. Murray strongly denied having ever “furnished or prescribed’’ Demerol to Jackson.

The newspaper also quoted a source close to the investigation who said the LAPD interview of Dr. Murray failed to turn up any smoking gun linking him with the death.

Separately, LAPD Lt. Gregg Strenk told The Times that investigators have no information that shows Jackson had been injected with Demerol or other painkillers. Such reports, The Times was told by the LAPD, “are coming from outside the investigation.’’

Meantime, Jackson’s three children were reportedly with their grandmother, Katherine Jackson.

Jackson’s second wife, Deborah Rowe, is the mother of his two oldest children — Michael “Prince’’ Joseph Jr., 12, and Paris Michael Katherine, 11. Prince Michael II, 7, is the product of an unknown surrogate mother.

Jackson reportedly wanted his three children to remain together with their grandmother, but a national TV estate planning and inheritance attorney from Los Angeles, Mina N. Sirkin, said his children and estate plan may not be as perfectly planned as he had wished.

Sirkin, who was the CBS2/KCAL9 expert on the death of Anna Nicole Smith and the guardianship of her child, and a media expert regarding the conservatorship of Britney Spears, said it is likely that the nomination of guardian by Jackson relating to the two children he had with Rowe may fail because the court did not make the special findings necessary to terminate her paternal rights.

Surrogate parents also have special rights in California which if not terminated by the court will remain intact for the surrogate parent. At this point, it is unclear whether any court terminated the surrogate’s rights to Jackson’s youngest child, she said.

She also said his life insurance policies may not be fully paid, even if he created irrevocable life insurance trusts for his minor kids naming those children as beneficiaries.

She said large policies are subject to many exclusions, and the facts of death of Jackson, along with the coroner’s findings, will have an impact on whether the policies will be paid.

Another person who may seek seek child custody is Grace Rwarabamba, a Rwanda-born woman who had worked as the nanny for Jackson’s children for a decade.

She told a London tabloid that she had seen Jackson get his stomach pumped numerous times to remove painkillers.

Rwarabamba, who was abruptly fired by Jackson in December, told the London paper the singer was hooked on painkillers.

“I had to pump his stomach many times,’’ she told the paper. “There was one period that it was so bad I didn’t let the children see him.

Other newspapers reported that Jackson’s children were told about their father’s death in a hospital waiting room at UCLA on Thursday.

And the White House announced that President Barack Obama sent a personal note to the Jackson family, but did not release the note’s contents.