The King of Pop has a new queen! Michael Jackson has secretly married his children's nanny, The ENQUIRER has learned exclusively. Although the performer's publicist denies Jacko has taken a bride, The ENQUIRER has obtained a real estate document that shows he is married.

When Michael applied for a loan regarding a home that he owns on Lindley Avenue in the Los Angeles area in June, he listed himself as a "married man" on the documents.

Michael wed nanny Grace Rwaramba, 40, earlier this year in Las Vegas, according to an insider close to the couple.

"Grace is not only the caretaker of his children, but one of his dearest friends," said the insider.

Another source revealed that 49-year-old Michael married Grace to protect himself and his children — Prince, 10, Paris, 9, and Blanket, 5 — because he believes it will help convince people that the kids are being raised in a stable family environment.

"Grace was happy to go along with it," claimed the source. "She's always been devoted to Michael and has raised the kids since the day they were born.

"Michael knew she'd make a perfect stepmother."

Pick up this week's issue of The ENQUIRER to see the official documents and read all the details!