Model Christie Brinkley says she's worried for the safety of her daughter Alexa Ray, 17, following Billy Joel's weekend car crash. Alexa's pop plowed his Mercedes-Benz into a tree Saturday night while driving alone in Sag Harbor, N.Y. "The seat Alexa was sitting in only hours before this latest crash was completely destroyed," Brinkley said after she snapped photos of the wreckage. There's speculation that Brinkley will ask a court to stop Joel from driving with Alexa present.