X → A-12, Grimes revealed that he and Elon Musk (open in new tab) had changed the newborn's name in accordance with California birth certificate rules prohibiting the inclusion of numbers. The new name is not so different, and the pronunciation, which Grimes and Mask apparently do not agree on (opens in new tab), is likely to be exactly the same.

In a comment on Grimes' latest Instagram post, one of her followers asked, "Did you change your baby's name because of California law? What is the baby's new name?" I asked. Grimes' response: "X -> A -> Xii". A subsequent commenter said, "Roman numerals. Roman numerals sounds better.

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