Christie Brinkley through the years

Christie Brinkley at her 65th birthday and launch of the new Ultherapy campaign - #MilestonesOfMe at Gramercy Terrace at The Gramercy Park Hotel in Manhattan on Jan. 29, 2019.

Christie Brinkley attends Cocktails and a Conversation with the Stars of Lifetime's "American Beauty Star," in Manhattan on Jan. 17, 2019.

Model Christie Brinkley, left, and her daughters, singer-songwriter Alexa Ray Joel and model Sailor Lee Brinkley-Cook, at the 2018 Footwear News Achievement Awards at IAC Headquarters in Manhattan on Dec. 4, 2018.

Christie Brinkley shows off her book, "Timeless Beauty," at the East Hampton Library's annual Authors Night fundraiser in East Hampton on Saturday, Aug. 13, 2016.

Christie Brinkley attends the premiere of the USA Network scripted comedy series "Donny!" at The Rainbow Room in New York City on Tuesday, Nov. 3, 2015.

Christie Brinkley and Donny Deutsch attend the premiere of the USA Network scripted comedy series "Donny!" at The Rainbow Room in New York City on Tuesday, Nov. 3, 2015.

Model Christie Brinkley attends a special screening of "Mission Impossible: Rogue Nation" at the United Artists East Hampton Cinema 6 in East Hampton on Friday, July 24, 2015.

Christie Brinkley attends the Barbie and Sports Illustrated Swimsuit 50th anniversary celebration of the swimsuit legends in New York City on Monday, Feb. 17, 2014.

Christie Brinkley and daughter Sailor Brinkley-Cook arrive at the 2013 Style Awards at Lincoln Center in Manhattan on Wednesday, Sept. 4, 2013.

Kate Upton and Christie Brinkley arrive at the 2013 Style Awards at Lincoln Center in Manhattan on Wednesday, Sept. 4, 2013.

Christie Brinkley attends the Radiation and Public Health Project's annual meeting at Candle 79 in New York City on Thursday, June 13, 2013.

Christie Brinkley arrives at the Riverhead courthouse on June 22, 2012.

The South Fork Natural History Museum honors Christie Brinkley during a gala benefit with her family including Alexa Joel, Sailor Christie and Jack Cook on June 16, 2012.

Christie Brinkley attends the Broadway opening night of "Priscilla Queen of the Desert: The Musical" at the Palace Theatre in Manhattan on March 20, 2011.

Christie Brinkley attends the HBA Global 2010 positively beautiful award presentation at the Jacob Javitz Center in Manhattan on Sept. 28, 2010.

Christie Brinkley attends the screening of "Fair Game" hosted by Giorgio Armani & The Cinema Society at The Museum of Modern Art in New York City on Oct. 6, 2010.

Christie Brinkley in East Hampton on June 19, 2010.

Christie Brinkley watches Rafael Nadal of Spain play against Fernando Verdasco of Spain during a men's single quarterfinal match on Day 11 of the 2010 U.S. Open at the USTA Billie Jean King National Tennis Center in Flushing on Sept. 9, 2010.

Christie Brinkley, left, Alexa Ray Joel and Billy Joel at the premiere of 'Last Play At Shea' during the 2010 Tribeca Film Festival at the Tribeca Performing Arts Centre on April 25, 2010, in Manhattan.

Susan Lucci and Christie Brinkley at the Hamptons Memorial Day weekend celebration at a private residence on May 23, 2009, in Southampton.

Christie Brinkley works in her garden at her home in Bridgehampton on July 25, 2009.

Christie Brinkley gives a tour of her Bridgehampton home's garden on July 25, 2009.

Christie Brinkley at the Aretha Franklin Performance for the @Ross 08 Series Benefiting Ross School's Programs and Scholarships at Ross School in East Hampton on Aug. 23, 2008.

Model Christie Brinkley drops the puck for the season opening game between the Buffalo Sabres and the New York Islanders at Nassau Coliseum in Uniondale on Oct. 6, 2007.

Christie Brinkley walks the runway at the Heart Truth Red Dress Collection Show during the Olympus Fashion Week at Bryant Park in Manhattan on Feb. 5, 2005.

Christie Brinkley, her then husband Peter Cook and two children stand backstage at the Heart Truth Red Dress Collection during the Olympus Fashion Week at Bryant Park in Manhattan on Feb. 4, 2004.

Model Christie Brinkley arrives for launch of the 2004 Sports Illustrated swimsuit magazine, 40th anniversary issue, which contains the Sports Illustrated swimsuit hall of fame, in Manhattan on Feb.10, 2004.

Christie Brinkley testifies before a Senate subcommittee hearing on transportation, infrastructure and nuclear safety in Washington on Jan. 23, 2002.

Christie Brinkley and her then-boyfriend Billy Joel laugh while out for an evening in London on May 4,1983.

Christie Brinkley takes pictures with a Polaroid camera as her then-boyfriend Billy Joel looks on May 4, 1983.