Grimes and Elon Musk have been forced to change their baby's name to comply with California law.
The 32-year-old singer - who gave birth to her son on May 4 - has revealed via Instagram that she's changed her baby's name from X Æ A-12 to X Æ A-Xii, because California law prohibits Indo-Arabic numerals in names.
The name change came to light after an Instagram follower asked: "Did you change the baby name because of Californian laws ? What is the baby's new name? (sic)"
![Elon musk posted this image with his newborn son. Photo / Twitter](https://www.nzherald.co.nz/resizer/v2/MK5IDS2K2XXNTSOP7U7S7N3S6M.jpg?auth=ccfde6a8c67cec73a0055a2e6c90411144765a9264c2ae47ca10a299adb12ab3&width=16&height=10&quality=70&smart=true)
READ MORE:
• Inside Elon Musk and Grimes' bizarre relationship after birth of baby boy
• Grimes and Elon Musk finally explain pronunciation of baby's name
• Elon Musk publicly corrects Grimes over their baby's name
• Grimes' and Elon Musk's baby name, X Æ A-12, is illegal in California