Christie Brinkley, 68, looks youthful as she talks climate change and how voting helps

Celebrities Over 60 Rocking Bikinis: Swimsuit Photos of Christie Brinkley, Jamie Lee Curtis and More

Christie Brinkley & Lookalike Daughter Sailor, 24, Hold Hands Outside Michael Kors Show

Anne Hathaway, Christie Brinkley, and Karlie Kloss lead celebs at US Open Men's Singles Final