The Neverland nanny of Michael Jackson‘s three children has her heart set on marrying the pop star, believes his former manager.

Frank DiLeo — who is working again with the megastar — believes Grace Rwarmba, 38, is eager to become Jackson’s third wife now that he’s been cleared of child molestation charges.

“I believe that she wants to marry Michael,” DiLeo said in an exclusive interview. “She has come a long way — from the war in Rwanda to the luxury of life as the nanny of Michael Jackson’s children. But Michael needs to get away from all the people who do not have his best interests at heart. In my opinion, Michael is better off without Grace.”

It is understood Jackson’s children refers to Grace as “mom”.

Sources added that a power struggle is taking place behind the scenes for control of the once-mighty King of Pop, who has been visiting the tiny Gulf kingdom of Bahrain with his family.

And a close source said nanny Grace is at the center of the battle to run Jackson’s life. Said the source: “Michael doesn’t know what is going on around him. And Grace seems to be trying to keep him under control.”

Adding weight to DiLeo’s claims, Fox News online columnist Roger Friedman said: “Michael may not realize what he’s getting himself into,” and that the singer “is said to be having some kind of relationship” with Grace. Jackson, who was previously married to Debbie Rowe and Lisa Marie Presley, is said to absolutely trust Grace with his children, but it’s unclear if he shares any romantic interest.

She is said to be a deeply religious woman who has studied the Bible with Jackson’s older sister Rebbie, a devout Jehovah’s Witness. A friend said Jackson was introduced to her in 1996 by then-South African President Nelson Mandela when the singer was visiting that country. Said the pal: “Michael was looking for a reliable nanny and hired Grace and brought her back to the States before his first child, Prince, was even born.

“Michael handed over Prince to Grace within minutes of his son being born to Debbie Rowe in 1997, and drove them to Neverland. Grace has also raised Paris, born in 1998, and Prince Michael II — nicknamed Blanket — since Michael adopted him in 2002.”

— Additional reporting by John South and Ellen Goodstein