Christie Brinkley, 61, poses with lookalike daughter Sailor, 17 at Celebrity Autobiography

She's been following in her famous mother's modelling footsteps, recently striking a pose for Seventeen magazine's September issue. And Sailor Brinkley Cook, 17, joined her lookalike mum, Christie Brinkley, 61, to attend Celebrity Autobiography at Guild Hall in East Hampton, New York on Friday. The two were inseparable while showing their photogenic sides for the cameras. Christie