Elon Musk Explains Exactly How to Pronounce His Newborn Son's Name X Æ A-12
https://www.etonline.com/elon-musk-explains-exactly-how-to-pronounce-his-newborn-sons-name-x-ae-a-12-146171
"Well, first of all, it was my partner [Grimes] who actually mostly came up with the name," Musk shared. "She's brilliant."
As for how to say the name, the Tesla founder explained, "So, it's just X, the letter x, and then the Æ is pronounced Ash."
Musk's contribution to the name is A-12, which is an ode to the Archangel 12, the "precursor to SR-71, the coolest plane ever."
So according to Musk, his son's name is X Ash Archangel Twelve. "It's great," he said proudly.
However, Grimes, real name Claire Elise Boucher, told one of her Twitter followers that "it’s just X, like the letter X, then A.I. Like how you said the letter A then I."