Elon Musk and Grimes picked 'Valkyrie' as their unborn child's name but Musk instead gave it to one of his kids with Shivon Zilis, NYT reporter Kate Conger told Business Insider. "[Grimes] posted...lyrics that she'd written about the name...being stolen," Conger said. "Shivon ended up changing that child's name, which is how her kids' existence came to light," she added.