Katherine Jackson is reportedly very upset about the "unwanted chaos" brought into her life by her offspring.

The elderly mother of the late Michael Jackson lost guardianship of the King of Pop's three children recently after they were unable to reach her for over nine days.

But RadarOnline claims that since her return from a spa in Arizona, she has been livid with her son Randy for his alleged plan to overthrow the executors of the Michael Jackson Estate despite them bringing in $475 million since Michael's death in 2009.

"Now that Katherine has been home for a few days, she recognizes that Randy was the one that planned this, and she is absolutely furious for him doing so," a source told the site.

"Katherine has never had a stroke or a mini-stroke as the ridiculous letter says. Katherine will never speak out publicly against her children, it's just not who she is.

"Behind the scenes, however, Katherine is extremely upset and disappointed in Randy's actions that have brought so much unwanted chaos into all of their lives."

Katherine and Tito's son TJ have apparently now agreed to share custody of Paris, Prince and Blanket and will go to court to have the arrangement signed off by a judge.