Grimes shared that on Thursday she changed the name of her daughter she shares with tech billionaire Elon Musk in a question.
The 35-year-old musician – whom the Grammy Awards last month labeled “irrelevant” – revealed on Twitter that her youngest child is now Y, Why or ? is called.
The Genesis singer – whose real name is Claire – posted a side-by-side of her and her daughter, twins in red. She wrote on the tweet “YC” with a dragon emoji in the middle, prompting fans to inquire about the child’s name.
Her one-year-old daughter was previously named Exa Dark Sideræl Musk, but the Canadian-born woman decided to change it.
She explains this in an interview with Vanity purse in April last year what her daughter’s original name means.
Mom stuff: Grimes shared that she changed her daughter’s name to a question
Quick name change: The 35-year-old musician revealed that her youngest child is now Y, Why or ?
In the profile, she shared that Exa was called Y for short, but that it is now her new name.
Exa refers to the computer term exaFLOPS. Dark means ‘the unknown’. People fear it, but really, it’s the absence of photons. Dark matter is the beautiful mystery of our universe.’
Grimes added that Sideræl means the true time of the universe, sidereal time, deep spacetime, not our relative terrestrial time.’
A fan responded to her recent tweet saying, “omg baby sailor mars hiiii,” to which the beauty responded to the fan sharing her daughter’s updated name.
“She’s Y now, or “Why?” or just “?” (But the government won’t acknowledge that),’ she wrote.
Grimes then explained that the child’s name is meant to represent “curiosity, the eternal question, .. and all that.”
She and the Tesla CEO are also the parents of 2-year-old X Æ A-12, nicknamed X, whose name was later changed to X Æ A-Xii because California law prohibits the use of numbers in a legal name.
The couple initially disagreed on how to pronounce the child’s name, and Grimes took to her Instagram to explain. “It’s just X, like the letter X. Then AI. Like how you said the letter A and then me,” she shared.
Former couple: She shares her daughter and son with tech billionaire Elon Musk; the pair seen at The Met Gala in 2018
Setting the record straight: The beauty wrote “YC” on the tweet with a dragon emoji in the middle, prompting fans to inquire about the child’s name
Former family of three: Grimes then explained that the child’s name is meant to represent “curiosity, the eternal question,.. and stuff”
To keep it unique, the couple also shares a two-year-old son X Æ A-12, nicknamed X
Couple of things: Elon and Grimes initially disagreed on the pronunciation of their son’s name; seen at the 2018 Space X Hyperloop Pod Competition
However, Musk told podcast host Joe Rogan a different pronunciation of the name. ‘First of all, my partner is the one who actually, usually, came up with the name. Yes, she’s good at names.’
Rogan then asked how to say it, to which Musk replied, “I mean, it’s just X, the letter X. And then the Æ is pronounced “Ash”… and then A-12, A-12 is my contribution.’
Elon has five other children – twins Griffin and Xavier and triplets Damian, Saxon and Kai – from a previous marriage.
He and Grimes began publicly dating in May 2018, but had an on-again, off-again relationship until they finally broke up after the birth of their daughter in March 2022.