Christie Brinkley bares her toned abs in 70th birthday post

The supermodel celebrated her milestone birthday in a white Alo Yoga bra and leggings as she shared some musings on getting older Tuesday.

Christie Brinkley, 70, Shows Off Toned Abs in Mirror Selfie

Christie Brinkley calls out 'wrinkle brigade' after trolls attack

Christie Brinkley and John Mellencamp are spending time together

Christie Brinkley Strips Down to Her Bra as She Celebrates 70th Birthday

Christie Brinkley, 66, is back in a bikini after hip surgery

Christie Brinkley is 'so excited' return to 'Chicago' on Broadway

Christie Brinkley shows off legs in white swimsuit ahead of 70th

Christie Brinkley reveals skin cancer diagnosis, details graphic treatment

Christie Brinkley, 65, flaunts chiseled abs in red-hot bikini

Christie Brinkley gets emotional over her kids growing up

Christie Brinkley isn't fazed by wrinkles ahead of 70th birthday

At 70, Christie Brinkley Poses in Sports Bra, Shows Off Toned Abs in Mirror Selfie

Christie Brinkley, 66, poses in a bikini top as she enjoys the new year with daughter