Michael Jackson's 2002 will (his last) has a mistake in it, but despite what some conspiracy theorists (his brother Randy) think, it looks like just that.

A mistake. No harm, no invalidation required.

According to the will, dated July 7, 2002, it was signed in Los Angeles. But Randy Jackson says Michael was in New York City on that date and can prove it.

As a result Randy thinks the signature on Michael's will is a forgery.

But Howard Weitzman, the lawyer for the estate, says the signature is valid and the witnesses saw Jackson sign the thing. The L.A. reference is just wrong.

Michael Jackson signed the will in New York City on the date in question. Whomever wrote L.A. is a witness who simply forgot ... or screwed up. Whatever.

My bad! I meant to put New York!

The bottom line is that the mistake does not invalidate the will, even if Randy is convinced for some reason that it should. It was just a harmless error.

Also interestingly, if the will were declared invalid, MJ's prior 1997 would be the basis for the distribution of his estate. The 1997 will creates a trust.

Just like the 2002 will's trust, Katherine Jackson gets 40 percent for her lifetime, MJ's children get 40 percent and the remaining 20 goes to charity.

So basically, nothing would have changed.

Here's Michael's will if you're interested ...