Debbie Rowe

*As the June 25th anniversary of Michael Jackson’s death approaches, Fox 411 is reporting that his three children have been spending time with Debbie Rowe, the biological mother of his two eldest kids Prince Michael, 13, and 12-year-old Paris.

The mother of the pair’s 8-year-old brother Prince Michael II (Blanket) is unknown.

Rowe, Michael’s ex-wife, had no contact with her kids since the singer’s death last June. The 51-year-old dermatology nurse and horse breeder gave full custody rights to Michael when they divorced in 1999.

In addition to getting to know her children in recent months, Debbie has reportedly been in contact with Michael’s mother Katherine, who is the legal guardian of Prince, Paris and Blanket.

In related news, Katherine has given her blessing to the “Forever Michael” tribute concert planned for Saturday despite reports of skepticism over the organizer, or that it was allegedly arranged without the family’s approval.

To set the record straight, Katherine appeared in a YouTube video with organizer Joseph Fahmy of Voice Plate Productions to thank him for putting the show together.

“I know that Michael would be very honored and very pleased that his fans all over the world are coming together to celebrate his life,” she said. [Scroll down to watch.]

Joseph Fahmy of Voice Plate Productions and Katherine Jackson

TMZ.com alleged earlier this month that “Forever Michael” is not sanctioned by Jackson’s estate.

Howard Weitzman, lawyer for the estate, told the Web site: “No one ever contacted the estate to see whether or not they would approve, participate in, or allow the use of Michael’s name, likeness, image or intellectual property.”

Fahmy told The Associated Press on Monday that Katherine Jackson “just rescued me” with her show of support.

“There was some negative press, and rumors that it wasn’t authorized,” Fahmy explained. “But we know it was. … The Jacksons are so private, and, really, I was going to allow the press to just say what they were going to say, and take the beating from the press, just to give them (the Jacksons) their privacy.”

Added Fahmy: “Towards the end here, Mrs. Jackson just said, ‘I need to clear the air for you, because you’re doing such a wonderful thing.’ And she was just one of the sweetest ladies you could ever meet.”

The event at the Beverly Hilton Hotel, estimated to cost $250,000, will include performances by the Chi-Lites and Genevieve Jackson, Michael Jackson’s niece and the daughter of Randy Jackson. Tickets start at $150 and go up to $500.

Part of the proceeds will go to the Jackson Family Foundation and to Michael Jackson’s favorite charities, according to the organizers.

[More Katherine news below.]

TMZ is also reporting that Weitzman has threatened legal action against the businessman who partnered with Katherine for her new coffee table book, which Fahmy plugs in the above video.

The Web site reported:

Howard Mann — whose business ventures include online nude gambling — got Katherine Jackson to agree to publish the book, “Never Can Say Goodbye,” scheduled for release this week.

Mann also told TMZ he and Katherine will make record deals for 273 unreleased Michael Jackson songs — part of an MJ treasure trove he acquired in a fire sale after Joe Jackson failed to pay a storage bill.

But estate lawyer Howard Weitzman is ticked, claiming Mann “may be using his relationship with Mrs. Jackson to infringe upon Michael Jackson’s copyrights … to the detriment of, among others, Michael’s three kids.”

Weitzman says Mann has no right “to exploit any estate assets” and he will take “whatever action is necessary to prevent him from unlawfully profiting.” TMZ translation — the estate will sue his ass if Mann goes forward.

We’re told Katherine Jackson is happy with the job the executors have done — namely filling the coffers with hundreds of millions of dollars — but sources say family members are in her ear, getting her to sign off on ventures that end up hurting the estate, MJ’s kids, and Katherine herself.