Christie Brinkley turns up the heat in new photos, dazzling fans with her ageless beauty in a red hot string bikini!

Christie Brinkley took to Instagram with sexy swimsuit photos along with an inspiring message in which she said she's 'feeling optimistic' ahead of releasing her new memoir 'Uptown Girls.' ...

Christie Brinkley has still got it. The legendary Sports Illustrated Swimsuit issue model might be in her 70s, but she's not letting that stop her from posting some sizzling content on social media.