Grimes inadvertently broke the news of the birth of her second child with Tesla co-founder and CEO Elon Musk via a surrogate on her social media accounts this week.
Grimes revealed the name of the newborn girl, Exa Dark Siderl Musk (pronounced sigh-deer-ee-el), in an exclusive interview with Vanity Fair. The baby was born in December, according to Grimes. In addition, the couple refers to their daughter as “Y.”
The name of the new kid is complicated, with Exa being a reference to the exaFLOPS video game (or, the ability of supercomputers to perform 1 quintillion floating-point operations per second). Darkness is associated with the unknown, and Siderl is a “more elven” spelling of sidereal, the timekeeping method used by astronomers to pinpoint celestial objects in the night sky. Siderl is also a nod to Grimes’ favorite character from The Lord of the Rings, Galadriel, who appears in the film.
After hearing the distinct sound of a baby screaming while doing an interview at Grimes’ house in Austin, Texas, Vanity Fair writer Devin Gordon went to investigate. He was certain that the crying newborn could not have been the couple’s first kid, who was due to be born in May 2020 and was called X A-12.
After first declining to discuss the baby, Grimes later said, “I’m not at liberty to talk about these matters.” Regardless of what is going on in the family, I believe that children should be kept out of it, and that X is just out there.”
Finally, she disclosed that she and her husband had used a surrogate for their daughter.
The announcement of the birth of Y comes after it was revealed that Grimes, 33, and Musk, 50, had ended their three-year relationship in 2021.
As Grimes described it to Vanity Fair, her relationship with Musk is “fluid,” and the two of them reside in separate homes. Besides that, the artist said that she and Musk want to have additional children, adding that they “have always wanted at least three or four.”
As was the case with the birth of the couple’s first kid, X A-12, many people turned to social media to express their opinions about the couple’s second child’s given name.
Exa Dark Siderl Musk is the eighth child of Elon Musk.