Celebrity Grimes's Son X Æ A-Xii Doesn't Call Her "Mom" It just won't do. By Christopher Luu Christopher Luu Instagram Twitter Christopher is a Southern California-based editor and has been with InStyle since 2018. He covers all things entertainment, celebrity, and culture. InStyle's editorial guidelines Published on September 17, 2021 @ 01:36PM Pin Share Tweet Email Grimes's sword and illuminated book-as-clutch may have stolen the show at the 2021 Met Gala — a tough task when she was also wearing a metal face mask and an Iris Van Herpen gown — but as behind-the-scenes clips from Vogue rolled out onto the internet, the singer's getting-ready routine is making big headlines, too. While she prepped for the gala, she explained that being a mom has changed her as an artist and that much like her unorthodox approach to music, she has an unconventional view on being a mom. "I think having a baby was a big rebirth for me, like artistically," she said. "Being a mother feels weird to say. For some reason, I don't identify with that word." Photo by Taylor Hill/WireImage Grimes Shared a Rare Photo of X Æ A-12 So, since she doesn't "identify" with it, she said that her son, full name X Æ A-Xii, calls her Claire, her first name (her full name is Claire Elise Boucher). And as for his name, she revealed that she calls him X. Grimes and her partner, Elon Musk, initially announced that his name was X Æ A-12, but had to change it to X Æ A-Xii to abide by the state of California's requirements for a Social Security card. "Which is also really weird because X, he says 'Claire,' but he doesn't say 'mama.' Which is so... I'm like, 'How are you...?' " she added. "Like, maybe he can sense my distaste for the word 'mother.' I don't even know why I have a distaste for [the word] because I respect … I just, I don't, I can't identify with it, weirdly." Grimes Shared a Peek at Her Son X Æ A-Xii in a New Video Grimes and Musk welcomed X back in May 2020. While X is Grimes's first child, Musk is dad to 17-year-old twins Xavier and Griffin and 15-year-old triplets Kai, Saxon, and Damian. Grimes didn't share if they call her by her first name, her stage name, or any other nickname.