MICHAEL JACKSON'S life may have been a twisted soap opera, but at least it had great musical accompaniment.

In death, we're getting all the horror, but none of the "Thriller."

As the nuttiness continued yesterday, TMZ.com reported that Jackson was not the biological father of the two children born to his then-wife, Debbie Rowe, when they were married.

Compounding that oddity are reports that Rowe wasn't even the biological mother, although her lawyer is claiming that she is.

But at least we know that she carried the children to term.

That's more than we know about the youngest child, Prince Michael II, who was not only born to an anonymous donor father (what are the odds that the money Tattle made at the sperm bank a few years ago . . .?) but also an anonymous surrogate mother from San Diego who had no idea that she was carrying Jackson's child.

As Jackson had no blood relationship to any of his children, it might have been a good idea if he had filled out the paperwork to adopt them at some point.

Oops. Forgot.

We are therefore left with three children with no blood relationship to Michael Jackson and no adoption paperwork tying them to Michael Jackson, living under the care of the two people who turned Michael Jackson into Michael Jackson - mother Katherine, whom he adored, and father Joe, who allegedly beat him.

The only bright spot to this sad, lurid mess? It's knocked Kate Gosselin off the tabloid covers.

* L. Londell McMillan, a Jackson family lawyer, said yesterday that Michael did have a will.

"My clients are now aware after filings that a will has been presented," McMillan said. "His various advisers are looking for additional documents."

The existence of a will, and the likely appointment of an executor, could complicate a petition by Jackson's mom to become the administrator of his estate.

* AEG Live, the promoter behind Jackson's sold-out comeback tour, said yesterday that footage of his rehearsals may be released in the future, and that an all-star tribute show based on his canceled concerts is likely.

We must wring ever dollar out of him in death as we did in life.

Randy Phillips, chief executive of AEG, told Britain's Sky News that a tribute featuring members of Jackson's family and other music stars would likely use dance routines, sets and costumes created for the scrapped tour.

Phillips described Jackson as a close friend, and said that MJ had been excited about the concerts - confiding to him the day before his death that he felt ready for his 50 sold-out performances at London's O2 arena.

After a rehearsal June 24, "[Jackson] gave me a hug and he whispered into my ear, 'Now I know I can do this,' " Phillips said.

"At some point the world needs to see this production, and I imagine if we could do it, it would be done as a tribute, with the family - with the brothers performing and some of the sisters - but also the stars who loved Michael and were influenced by him," Phillips said.

"We have the intellectual-property content, we have the sets, we have the costumes . . . ," he said. "It would have been - which is a tragedy - one of the most amazing arena shows ever."