Christie Brinkley's Daughters Wish Her 70th Birthday with Epic Video Montages: 'Happy Sexy 70'

Plus, 'Sports Illustrated Swimsuit' shared a throwback video of Brinkley in honor of her milestone

<p>Sailor Brinkley Cook/Instagram</p> Christie Brinkley and Sailor Brinkley Cook

Sailor Brinkley Cook/Instagram

Christie Brinkley and Sailor Brinkley Cook

Christie Brinkley has reason to celebrate!

The iconic model turned 70 on Friday and the sweet tributes in celebration are already rolling in. Christie's youngest child, Sailor Brinkley Cook, led the charge with the messages, sharing a video montage on Instagram on Friday morning set to the tune of Candi Staton's "Young Hearts Run Free."

The video included several snippets of Christie enjoying life, including clips of her dancing, gardening, eating, spending time with her family and more. It even included a few of her birthday cakes in honor of her new decade.

"HAPPY SEXY 70, MOM!" Sailor, 25, captioned the video. Christie gushed over Sailor's work, telling her she should move to Hollywood and make these for a living. "I am so appreciative!! It’s so much fun! Like you! I love you so much!" she concluded her reply.

Related: Christie Brinkley's Most Iconic Swimsuit Photos, from 'Sports Illustrated' to Her Own Sexy Selfies

Christie's eldest daughter, Alexa Ray Joel, 38, whom she shares with Billy Joel, shared a photo and video montage of her own on Instagram later in the day that included tons of sweet moments of her mom. Alexa included some glam moments as well as candid loving shots of the whole family, writing a beautiful caption about her mom, that said, in part, "Happy Birthday To The Ever-Beautiful, Pure, N’ Precious Mother O’ Mine."

Sports Illustrated Swimsuit also shared a birthday message for Christie on Instagram. "A little flashback Friday in honor of the iconic @christiebrinkley’s birthday!" the magazine wrote in a caption alongside a video of Christie from decades ago when she shot for the swimwear outlet.

Christie starred on the cover if SI Swim in 1979, 1980 and 1981, making her the first model to ever be a three-time covergirl. She graced the pages of the magazine a number of times over the years, though, including when she posed with both daughters in 2017.

"Yes! I am excited to announce that I am back in @si_swimsuit ..I figured with my gorgeous daughters @alexarayjoel and @sailorbrinkleycook by my side whose going to be looking at me!" she wrote on Instagram at the time. "thank you Sports Illustrated for sending the powerful message that good things come in packages of every size and we do not come with an expiration date!"

Related: Christie Brinkley Talks 'Accepting Certain Wrinkles' and Gracefully Clapping Back at Online Haters (Exclusive)

<p>Christie Brinkley/Instagram</p> Christie Brinkley on vacation for her 70th birthday

Christie Brinkley/Instagram

Christie Brinkley on vacation for her 70th birthday

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Photographer Arthur Elgort, who has worked with Christie several times over the years, also shared a carousel of photos from their shoots together on Instagram. He wrote, "Wishing you the happiest of birthdays @christiebrinkley ! 🎉 I have such fond memories from our time together. May your day be as delightful as the moments we shared!"

<p>Christie Brinkley/Instagram</p> Christie Brinkley celebrating her birthday with her kids

Christie Brinkley/Instagram

Christie Brinkley celebrating her birthday with her kids

Related: Christie Brinkley Jets Off to Turks & Caicos to Celebrate 70th Birthday with Her Kids

Christie, who is also mom to son Jack Brinkley Cook, told PEOPLE in a recent interview that she's welcoming 70 “with a lot of reverence and emotion.”

“I think 70 is very similar to 50, in that it's a time when you look both back and forward,” she shared.

As with turning 50, the “steady march” to 70 has carried a certain weight, she added.

“The big 7-0 is another one of those [ages] that’s up there in giant block numbers that loom over," she said. "At 62, you start thinking, ‘Well, I'm almost 70.' It cast a shadow all over that whole decade down.”

But Christie said that rather than let the realization dim her outlook, she thought about how to make the moment “special.”

“Over the last five years, I thought, ‘I’m going to do a big blowout.’ ” However, life got in the way of her party planning. “Every day I've been so busy,” she said. “I haven’t really had a second to put a plan in place. And you know what? That’s absolutely fine with me.”

The model is celebrating her birthday with family in Turks & Caicos and has shared numerous photos on Instagram, calling their intimate celebration, "sweet."

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