Christie Brinkley celebrates 65th birthday in a sexy minidress: 'Do you ever age?'

Christie Brinkley is just days away from turning 65 on Feb. 2, but she’s already kicked off the birthday celebrations — and kicked up her heels.

Looking more supermodel than senior citizen, Brinkley wore a metallic minidress that showed off her long legs for an early birthday party hosted by Ultherapy, the nonsurgical skin-tightening and lifting procedure. Brinkley is fronting the company’s “Milestones of Me” campaign, which encourages women to celebrate the important moments at every age.

The model’s older daughter, singer Alexa Ray Joel, performed “Happy Birthday” for her mom, who sported gold high heels and long blond waves for the occasion.

“As I approach this milestone birthday, I look back on all that I’ve learned and the things that have become important to me, not only as a mother and friend, but also as a woman,” Brinkley said in a press statement. “For me, it’s not just about the big birthdays — it’s the smaller, more personal moments, like when my garden blooms in the spring, that deserve celebrating.”

Her fans, meanwhile, are celebrating her stunning look.

“Do you ever age!? No!” gushed one commenter.

“Your dress!!!!” raved another fan.

“Happy birthday to the most beautiful supermodel that never changes,” read another comment.

While many followers singled out her “great” legs, a few trolls couldn’t resist taking a potshot.

“That dress is a bit [too] short,” one remarked. 

See more photos of Christie Brinkley through the years:

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Julie Christie: Then and now
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Julie Christie: Then and now
(GERMANY OUT) Christie, Julie *14.04.1941-Schauspielerin, GB- Portrait- undatiert (vermutlich Anfang der 1960er Jahre) (Photo by ullstein bild/ullstein bild via Getty Images)
10th December 1961: Actor Cy Grant and actress Julie Christie hold their handcuffed hands over a candle ringed with barbed wire at a Human Rights ceremony at St-Martin-in-the-Fields church, London. (Photo by Edward Miller/Keystone/Getty Images)
Julie Christie, London, 7th June 1962. (Photo by Michael Ward/Getty Images)
British actress Julie Christie in London, 1962. (Photo by Michael Ward/Getty Images)
British actress Julie Christie, Birmingham, 22nd November 1963. (Photo by Michael Ward/Getty Images)
British actress Julie Christie smoking a cigarette, 1964. (Photo by Michael Ward/Getty Images)
Julie Christie lying in a bath, 1964. (Photo by Michael Ward/Getty Images)
Julie Christie with a glass of wine, 1964. (Photo by Michael Ward/Getty Images)
18th April 1966: British actress Julie Christie holds the Academy Award she won for her role in the film 'Darling' (1965), at the awards reception at the Civic Auditorium at Santa Monica, California. (Photo by Keystone/Getty Images)
(GERMANY OUT) Christie, Julie *14.04.1941-Schauspielerin, GB- Rollenportrait, in dem Spielfilm 'Darling'- 1965 (Photo by ullstein bild/ullstein bild via Getty Images)
(Original Caption) 12/10/1965-London, England-Actress Julie Christie strikes a pin-up pose shortly before her departure for New York to attend the premiere of her latest fil, 'Dr. Zhivago.'
(GERMANY OUT) Christie, Julie *14.04.1941-Schauspielerin, GB- als 'Lara' mit Omar Sharif als 'Jurij Schiwago' in dem Film 'Doktor Schiwago', USA- 1965 (Photo by ullstein bild/ullstein bild via Getty Images)
Julie Christie, British actress, wearing a short-sleeved turquoise knitted top, circa 1965. (Photo by Silver Screen Collection/Getty Images)
22nd April 1966: English actress Julie Christie with her Academy Award for Best Actress , which she won for her role in 'Darling'. (Photo by Harry Benson/Express/Getty Images)
British actress Julie Christie acting in Doctor Zhivago. Spain, 1965 (Photo by Mondadori Portfolio via Getty Images)
English actress Julie Christie wearing a short wig in a promotional portrait for 'Fahrenheit 451', directed by Francois Truffaut, 1966. (Photo by Silver Screen Collection/Getty Images)
English actress Julie Christie wearing a short wig in a promotional portrait for 'Fahrenheit 451', directed by Francois Truffaut, 1966. (Photo by Silver Screen Collection/Getty Images)
Julie Christie during 'Far From the Maddening Crowd' Premiere in New York City, New York, United States. (Photo by Ron Galella/WireImage)
Julie Christie (Photo by Ron Galella/WireImage)
16th October 1967: Actress Julie Christie at the Royal Film premiere of 'Far from The Madding Crowd' at the Odeon Leicester Square, London in which she starred. (Photo by George Freston/Fox Photos/Getty Images)
Julie Christie is yelled at by George C Scott in a scene from the film 'Petulia', 1968. (Photo by Warner Brothers/Getty Images
Julie Christie at JFK Airport; circa 1970; New York. (Photo by Art Zelin/Getty Images)
British Actress Julie Christie. (Photo by Photoshot/Getty Images)
Julie Christie and Goldie Hawn (Photo by Ron Galella/WireImage)
American actor Warren Beatty and English actress Julie Christie in a scene from the film 'Shampoo', 1975. (Photo by Silver Screen Collection/Getty Images)
English actress Julie Christie wearing sunglasses, as Jackie Shawn in 'Shampoo', directed by Hal Ashby, 1975. (Photo by Silver Screen Collection/Getty Images)
Actress Julie Christie and actor Warren Beatty attend the American Film Institute Benefit on May 27, 1970 at the Westbeth Artists Housing in New York City. (Photo by Ron Galella/WireImage)
CIRCA 1975: Actor Warren Beatty actress Julie Christie on set of the movie 'Shampoo' , circa 1975. (Photo by Michael Ochs Archives/Getty Images)
Actress Julie Christie attends a Stop the War Games Rally at Eldon Square in Newcastle 13 September 1980 - The Rally was organised by the Tyneside Anti-Nuclear Campaign in conjunction with Peace Action. (Photo by NCJ Archive/Mirrorpix/Getty Images)
Julie Christie during Ozzy Osbourne Concert After-Party at Peter Gatien's Limelight Entertainment Complex in New York City, New York, United States. (Photo by Ron Galella/WireImage)
British actress Julie Christie in her London Home 1982 (Photo by Martyn Goddard/Corbis via Getty Images)
Julie Christie and Richard Gere the film 'Power', 1986. (Photo by 20th Century-Fox/Getty Images)
British film actress Julie Christie, early 1990s. (Photo by Terry O'Neill/Getty Images)
TORONTO, ON - SEPTEMBER 14: Actress Julie Christie arrives at the 'Glorious 39' screening during the 2009 Toronto International Film Festival held at the Visa Screening Room at the Elgin Theatre on September 14, 2009 in Toronto, Canada. (Photo by Alberto E. Rodriguez/Getty Images)
JULIE CHRISTIE Munich, Germany 26th of June, 2008 ??Kurt Krieger (Photo by Kurt Krieger/Corbis via Getty Images)
MUNICH, GERMANY - JUNE 27: Actress Julie Christie shows the award trophy after the Cine Merit Award on June 27, 2008 in Munich, Germany. (Photo by Johannes Simon/Getty Images)
HOLLYWOOD - FEBRUARY 24: Actress Julie Christie attends the 80th Annual Academy Awards at the Kodak Theatre on February 24, 2008 in Los Angeles, California. (Photo by Steve Granitz/WireImage)
Julie Christie arrives at the 80th annual Academy Awards at the Kodak Theatre on February 24, 2008 in Los Angeles, California. (Photo by Bob Riha Jr/WireImage)
Actress Julie Christie attends the 80th Annual Academy Awards at the Kodak Theatre on February 24, 2008 in Los Angeles, California. (Photo by Steve Granitz/WireImage)
Julie Christie arrives at the British Academy Film Awards (BAFTA) held at the Royal Opera House in London. (Photo by rune hellestad/Corbis via Getty Images)
LONDON - FEBRUARY 10: Actress Julie Christie arrives at The Orange British Academy Film Awards (BAFTAs) at the Royal Opera House on February 10, 2008 in London, England. (Photo by Dave Hogan/Getty Images)
LONDON, ENGLAND - JULY 24: Julie Christie attends the West End Gala Performance of 'Queens Of Syria', a modern adaptation of Euripides' anti-war tragedy 'The Trojan Women' featuring an all female cast of Syrian refugees, at The New London Theatre, Drury Lane on July 24, 2016 in London, England. (Photo by David M. Benett/Dave Benett/Getty Images)
TORONTO, ON - SEPTEMBER 16: Actress Julie Christie speaks onstage at the 'Glorious 39' press conference held at the Four Seasons Hotel on September 16, 2009 in Toronto, Canada. (Photo by Alberto E. Rodriguez/Getty Images)
TORONTO, ON - SEPTEMBER 16: Actress Julie Christie speaks onstage at the 'Glorious 39' press conference held at the Four Seasons Hotel on September 16, 2009 in Toronto, Canada. (Photo by Alberto E. Rodriguez/Getty Images)
Actress Julie Christie ('Away from Her') arrives at the Academy Awards?? Nominees Luncheon held at the Beverly Hilton Hotel. (Photo by Frank Trapper/Corbis via Getty Images)
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“Could your dress be any shorter!” another commenter wrote, prompting one of the supermodel’s fans to fire back, “I think it could — with those legs, why not? Just incredible!”

Hey — it’s her party and she’ll flash some leg if she wants to.

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