Christie Brinkley just rang in her 67th birthday and in the run-up to her big day she took a walk down memory lane to share a show-stopping swimsuit snapshot. The model was feeling nostalgic when she took to Instagram Stories to repost a 'Happy Birthday' message from a fan who had shared a throwback photo of her.MORE: Christie Brinkley forced to defend swimsuit pictures taken in CaribbeanIn the Swimsuit Illustrated snapshot, Christie was sitting onboard a yacht and was wearing a high-cut