Christie Brinkley, 70, looks glam in cowboy hat as she shares selfie with lookalike daughter Sailor Brinkley-Cook, 25

Christie Brinkley shared a selfie with her lookalike daughter Sailor Brinkley Cook, who turns 26 on July 2.

In the snap from the front seat of their car, the forever cover girl, 70, wears a white cowboy hat and leans slightly towards her daughter.

'Don't be a lady, be a legend – Dolly Parton,' Christie – who recently opened up about her skin cancer diagnosis – captioned the post. 

Both woman stare directly into the camera with smoldering looks in their eyes, have on white tops and look like doppelgängers.

Christie shares Sailor and her brother Jack, 29, with ex-husband Peter Cook.

Christie Brinkley, 70, shared a selfie with her lookalike daughter Sailor Brinkley Cook, who turns 26 on July 2

Christie Brinkley, 70, shared a selfie with her lookalike daughter Sailor Brinkley Cook, who turns 26 on July 2

She also has a daughter, Alexa Ray Joel, 38, with her other ex-husband Billy Joel.  

Sailor is the youngest of her three kids and the busy mom reflected on being a parent in an interview with Parade in 2018.

'You learn so much from each child, just getting an opportunity to see the world through their eyes. I have three real individuals,' she said. 

'They all find magic in different places, and I feel so fortunate to be able to experience that.'

Sailor has followed in Christie's footsteps with modeling landing gigs with Sports Illustrated and Vogue just like her mom.

The lookalike duo have also modeled together on several occasions. 

And her famous mom gave her some key advice when Sailor first started out in modeling. 

'Her biggest advice when it comes to being on a set would be just to be as gracious as you can. I always try and introduce myself to everyone in the room,' Sailor told People last year. 

'And I always try and acknowledge everyone in the room. Because I mean, my job is almost pretty much the easiest,' she said. 

Sailor is the youngest of Christie's three kids

Sailor is the youngest of Christie's three kids

'You learn so much from each child, just getting an opportunity to see the world through their eyes. I have three real individuals,' Christie previously told Parade; seen in June

'You learn so much from each child, just getting an opportunity to see the world through their eyes. I have three real individuals,' Christie previously told Parade; seen in June 

Sailor has followed in her mom's footsteps with modeling landing gigs with Sports Illustrated and Vogue just like her mom

Sailor has followed in her mom's footsteps with modeling landing gigs with Sports Illustrated and Vogue just like her mom

She continued: 'That's what she taught me, is to really acknowledge my surroundings while I'm in it and not be a diva and have fun with the creatives that I'm working with.'

Sailor and her mom are very close. She even stepped in for her as a contestant on Dancing With the Stars in 2019 when Christie broke her arm during rehearsals. 

She was terrified but followed her mom's advice: 'My mom told me to have fun with it and to not let fear stop me from doing any of it.'

Sailor was eliminated during the sixth week of the competition.