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Yep, in only his second year on this Earth, it seems as if the little guy has learnt that orthodox naming isn't really a thing in his family. Check out her revelation below:
Grimes had X Æ A-XII with the always headline-grabbing billionaire Elon Musk in May 2020, and the announcement of his name understandably got a lot of people talking.
And now that the baby himself is talking, it turns out he isn't going down the standard route of calling his mum 'mum', 'momma' or 'ma'.
Nope, he's calling her Claire.
Musician Grimes - real name Claire Elise Boucher - made the revelation in an interview with Vogue as she was getting ready for the Met Gala earlier in the week.
Speaking about motherhood, the 33-year-old said: "Having a baby was a big kind of like rebirth for me, like artistically.
"Being a mother feels weird to say for some reason, I don't identify with that word... Which is also really weird, 'cause X, he says 'Claire' but he doesn't say like 'Mama', which is so, I'm like how are you... maybe he can sense my distaste for the word mother."
She added: "Which, I don't even know why I have a distaste for it, I respect it...I [just] can't identify with it, weirdly."
Good to hear she doesn't call him by his full name at least!
Explaining what her baby's name means, Grimes said in a tweet last year: "X [represents] the unknown variable.
"Æ is the the Elven spelling of Ai (love &/or Artificial intelligence).
"A-12 = precursor to SR-17 (our favourite aircraft). No weapons, no defences, just speed. Great in battle, but non-violent. (A= Archangel, my favorite song)."
Ahhh, it all makes sense now.
The baby's name was originally announced as X Æ A-12, but it was changed to comply with Californian law.
According to state legislation, people cannot have Indo-Arabic numerals in their names, so the singer and the billionaire couple changed it to... X Æ A-XII.
Grimes confirmed the news on her Instagram account after a fan asked: "Did you change the baby name because of Californian laws? What is the baby's new name?"
The Canadian popstar replied: "X Æ A-Xii."
Another fan commented: "Nice! Just removed the numbers to confirm [sic] to California law."
And Grimes responded: "Roman numerals. Looks better tbh."
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