How old is Vera Wang? Truth is, she is ageless. Well, not actually, she's 72, and she turned 72 just a few days ago, but holy moly she doesn't look a day over 30.

Taking to Instagram on Friday, the fashion designer shared a series of photos from her birthday celebrations with her fans and she looked beyond incredible in her party dress.

Vera could be seen wearing a yellow dress that had strappy sleeves and showed off her toned figure.

Dozens of A-list guests attended the party which was complete with magnums of champagne and numerous live acts.

Those invited included fellow designers Donna Karan and Calvin Klein.

Vera captioned the photos:

"Party with my besties."

And it was only a matter of time before Vera's followers began flocking to her comment section with messages about her ageless appearance.

One wrote: "I am sure you have the potion of eternal youth. I'm sure."

"Kill me... she is in her 70s but still looks cute", another commented.

A third said: "How in the world [are] you 72!!! Girl!" while a fourth said: "Damn you look 50 years younger."

Born in New York City of Chinese origin, Wang is one of the biggest names in the fashion world.

Wangs clients are almost entirely A-listers, such as Chelsea Clinton, Ivanka Trump, Campbell Brown, Alicia Keys, Mariah Carey, Victoria Beckham, Sarah Michelle Gellar, Avril Lavigne, Hilary Duff, Khloe Kardashian, and Kim Kardashian.

However she wasn't always a designer - and actually started her career as an editor for Vogue before getting a job with Ralph Lauren.

Wang started work for Vogue back in the early 70s upon graduation with college... So how does she stay so youthful? Well, I presume it's down to a great diet and a healthy workout routine.

But also, Wang must just be blessed with some seriously good genetics. And if she could bottle her secret potion of youth she'd be even more of a millionaire than she is today...

And we will finish this article by saying: Happy Birthday Vera Wang.

Keep being you!