Grimes Revealed Her Nickname for Baby X Æ A-Xii
Grimes just revealed her nickname for her first child with Elon Musk, X Æ A-Xii.


- Grimes and Elon Musk welcomed baby X Æ A-Xii last month.
- Grimes and Musk changed the name from X Æ A-12, which fell afoul of California laws due to its inclusion of numbers.
- In a new interview, Grimes revealed her nickname for her first child: Little X.
Grimes revealed her nickname for her new baby with Elon Musk, X Æ A-Xii, in a new interview. Originally named X Æ A-12, the parents were forced to change the name due to California naming laws, which prohibit the inclusion of numbers. "Roman numerals. Looks better tbh," Grimes told an enquiring fan on Instagram.
•X, the unknown variable ⚔️•Æ, my elven spelling of Ai (love &/or Artificial intelligence)•A-12 = precursor to SR-17 (our favorite aircraft). No weapons, no defenses, just speed. Great in battle, but non-violent 🤍+ (A=Archangel, my favorite song) (⚔️🐁 metal rat)May 6, 2020
Speaking to Bloomberg, Grimes revealed she calls her newborn something else at home: She uses the nickname "Little X." Cute!
For more stories like this, including celebrity news, beauty and fashion advice, savvy political commentary, and fascinating features, sign up for the Marie Claire newsletter.
Stay In The Know
Get exclusive access to fashion and beauty trends, hot-off-the-press celebrity news, and more.

Emily Dixon is a British journalist who’s contributed to CNN, Teen Vogue, Time, Glamour, The Guardian, Wonderland, The Big Roundtable, Bust, and more, on everything from mental health to fashion to political activism to feminist zine collectives. She’s also a committed Beyoncé, Kacey Musgraves, and Tracee Ellis Ross fan, an enthusiastic but terrible ballet dancer, and a proud Geordie lass.
-
King Charles Views Kate as a "Huge Asset"
"It bodes well for the future."
-
Why Royal Fans "Feel Sorry" for Prince Louis
Meanwhile, King Charles couldn't stop laughing at his grandson's "cheeky" behavior.
-
Sofia Richie Grainge Styles Zebra Pants With Flip-Flops
Next stop on the tour: her elegant wedding venue in the South of France.
-
Royal Fans "Feel Sorry" for Prince Louis After He's Told Off by Kate Middleton and Prince George for Two Very Different Reasons
Meanwhile, King Charles couldn't stop laughing at his grandson's "cheeky" behavior.
-
Kate Middleton and Princess Charlotte Showcase Their Mother-Daughter Style at Trooping the Colour 2025
The little princess twinned with her mom in the best way.
-
Princess Kate "Divides Her Time Meticulously" Between Raising Her Kids and Supporting Prince William in His Role as Heir to the Throne
"Her emphasis on a ruthless discipline...has helped her."
-
Queen Elizabeth Once Gave Some Very Blunt, "Matter of Fact" Parenting Advice About Raising Children in the "Public Eye"
New Zealand's former prime minister, Jacinda Arden, reflected on the unexpected comments.
-
How Prince William Is "Putting Family First" in His "Quiet" Approach to Future Kingship Role
Prince George, Princess Charlotte, and Prince Louis are at the center of everything William does.
-
Kate Middleton Refuses to Compromise on the "Central Values" She's Teaching Prince George, Princess Charlotte, and Prince Louis
The Princess of Wales is parenting on her own terms—not someone else's.
-
Why Joshua Jackson Won't Let Daughter Juno Watch 'Dawson's Creek' "Until She's in College"
"She's going to get all sorts of ideas."
-
Cameron Diaz Was "Just Trying to Stay Alive…Like Every Other Mother" During 10-Year Hiatus From Acting
"I was not keeping up with any kind of training...I said no to everything."