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- Grimes is seeking physical custody of her and Elon Musk's three kids, according to court documents.
- Her lawsuit came weeks after Musk quietly sued her to "establish the parent-child relationship" with the kids.
- The lawsuit includes an order that would prevent the children from being moved out of California.
Grimes is suing Elon Musk and asking for physical custody of the three children they share, according to court records obtained by Insider.