X17online exclusively has learned that Katherine Jackson spoke with Paris, Prince and Blanket Jackson last night ... telling Michael's three children that she'd be returning to their Calabasas home today.

Our Jackson family source tells us:

    "Katherine was beyond thrilled to speak with the three kids. The kids were excited to know she's coming home today, especially Paris."

We're told Katherine is very much aware of what's been going on over the last week at her home, and she's "infuriated" over the situation.

The 82-year-old Jackson matriarch will be making changes to her staffing upon her return. X17 first told you that "Paris has confided in her cousins that Trent and a security member have been "putting her up to Tweeting out messages against the family."

X17online obtained the exclusive photo of Katherine visiting her daughter Rebbie in Arizona and enjoying the card game, Uno. Arizona Sheriff's authorities have confirmed that the Jackson matriarch is "having a good time with family."

Stay tuned to X17online for exclusive developments.