By Jen Heger - Breaking Celebrity News Assistant Managing Editor

Michael Jackson's siblings are taking drastic actions in an attempt to gain access to the late singer's fortune and are pressuring Katherine Jackson to publicly disavow the executors of Michael's estate, Breaking Celebrity News is exclusively reporting.

"Katherine is currently in Arizona with Rebbie and is being pressured by Randy and Jermaine to go public with her dissatisfaction with the executors of Michael's estate. Remember, Michael intentionally left all of his siblings out of his will, and that absolutely infuriates Jermaine and Randy who are both desperate for cash," a source close to the situation tells Breaking Celebrity News.

"Katherine actually dropped her contesting of the will at the behest of these same children who got her to fire Burt Levitch, a lawyer who was challenging the will, and hire Adam Streisand, a lawyer who immediately withdrew the objections and let all time delays run. These are the very same kids, along with Janet, who signed a letter recently criticizing advisors and her current counsel, Perry Sanders, for NOT challenging the will. They themselves were responsible for dropping the prior challenge and letting crucial deadlines run long before Sanders was hired. Not only do they refuse to take responsibility for having the initial challenge dropped, they now want to rewrite history and act as if someone new is causing the problem. However, the children are in her ear 24/7, so it's possible that they could be successful in influencing Katherine to do something."

However, as Breaking Celebrity News previously reported, the statute of limitations to contest the will has expired, and "no one is to blame except the same siblings who signed the critical letter and who summoned Mr. Levitch to Janet Jackson's house and told him his services were no longer needed. Randy Jackson then hired Adam Streisand to represent his mother," the source says.

"Soon thereafter Adam Streisand made a bombshell r