The former nanny of Michael Jackson’s children is speaking out on the late star’s alleged history of abusing prescription drugs.

Grace Rwaramba, who worked for legendary star for more than 17 years before being dismissed last December, claims the King Of Pop often mixed too many drugs at the same time, neglected his three young children, and would fire her at the drop of a hat.

According to a new report in The Times of London, Rwaramba, 42, says she would often pump Jackson’s stomach after she claims he would ingest a large amount of mixed drugs.

“I had to pump his stomach many times . . . He always mixed so much of it. There was one period that it was so bad that I didn’t let the children see him…”

Grace, a native of Rwanda, began working as an office assistant before becoming nanny to Jackson’s kids, Michael Jr, known as Prince, 12, Paris, 11, and Prince Michael II, 7.

“I just got a phone call that Michael is in such a bad shape. He is not clean. He has not shaved . . . His nails . . . He is not eating well,” she said of a call prior to Michael’s death on Thursday. “I used to do all this for him. They are trying to lure me to go back. But each time it happened before, he got rid of me. Then he made promises if I would come back. All these promises . . . After few days, it was the same abuse all over again.”

According to the report, Rwaramba alleges that Jackson fired her after she contacted his mother Katherine and his sister Janet to plan an intervention.

“He didn’t want to listen,” she says. “That was one of the times he let me go.”

Even his children’s love lived elsewhere, Grace claims.

“When Michael was around, they froze,” she said. “He didn’t like me hugging them. But they needed love. I was the only mother they knew… I [was] getting phone calls that they [were] being neglected. Nobody is cleaning the rooms, because he didn’t pay the housekeeper.”

In the report, Rwaramba also claims that Michael had serious financial problems, and she says that his mother, Katherine, called her on the day following the King of Pop’s death to ask where he hid his money at his rented L.A.-area home.

“She said, ‘Grace, the children are crying. They are asking about you. They can’t believe that their father died. Grace, you remember Michael used to hide cash at the house. I am here. Where can it be?’”