Martha Stewart welcomes first grandchild

Martha Stewart has another party to plan!

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The domestic diva's daughter, Alexis Stewart, just had a baby girl, Jude, via a surrogate, a source confirms to "Martha is finally a grandmother!"

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Just don't call her that. Alexis, 45, recently announced that "Martha is going to be called 'Martha'" during her radio show, Whatever With Alexis & Jennifer. "She seemed to have no problem with it. I was like, 'Do you really want to be 'grandma?' I don't like the term grandma!"