In a new Vanity Fair interview, the Miss Anthropocene artist (who may or may not be dating Chelsea Manning?) accidentally revealed that she and Musk secretly welcomed a second child, a daughter, in December via surrogate.
Her name? Exa Dark Sideræl Musk, or "Y" for short.
The extremely tiring moniker pairs perfectly with X Æ A-XII Musk, Grimes's one-year-old son.
The name, which Grimes described as "fire," is a mash-up of references to supercomputing terms, deep space, and Lord of the Rings.
In case you need a refresher: X Æ A-XII is comprised of similarly nerdy elements, including an elven spelling of AI (artificial intelligence) and the Lockheed A-12, a precursor to Grimes and Musk's favorite aircraft, the SR-17.
Now, this is not an attack on the happy parents — famous people giving their children embarrassing names is a well known, well documented phenomenon.
Example: Gwyneth Paltrow and Chris Martin have a son and daughter named Moses and Apple, respectively.
Ashlee Simpson and Pete Wentz: Bronx Mowgli.
Gwen Stefani and Gavin Rossdale: Zuma Nesta Rock.
Lucky Blue Smith (not celebrity spawn, just a model from Utah) and Stormi Bree Henley (the daughter of a reality competition show winner) hit us with the trifecta: Gravity Blue, Rumble Honey, and Slim Easy, which may or may not also be menu items at Juice Generation.
What happened to tried-and-true classics like Mary or Bob? Are they too normcore for the rich and famous? Once your Instagram follower count hits 100,000, are you required to name your offspring a random noun?
And should we, as a society, continue allowing celebrities to name their own children?