'X Æ A-12 Musk': Grimes, Elon Musk explain the backstory of new baby boy's name Congratulations are in order for Grimes and Elon Musk! The 32-year-old musical artist, whose real name is Claire Boucher, and her SpaceX and Tesla mastermind boyfriend welcomed their first child together on Monday, Musk tweeted. Musk, 48, shared a photo of himself holding the newborn in the hospital early Tuesday morni