Elon Musk's ex-girlfriend Grimes revealed in the former's biography that the billionaire once brought a 200-year-old pistol to a recording session of popular game 'Cyberpunk 2077' and "insisted" on a cameo. "The studio guys were like sweating," Grimes, who was recording for the game in same studio, said. "I told [studio executives] I was armed but not dangerous," Musk said.