Fans are in disbelief after discovering how old Vera Wang's daughter is.
Wang is never short of compliments on her ageless appearance. With each photo she posts of herself on social media comes a slew of comments from stunned followers who cannot believe she is 74.
There's no denying that the fashion designer looks decades younger than she is - but it turns out, so do her children.
The national treasure recently took to Instagram to post a carousel of images marking her daughter Josephine's birthday.
Wang went on to reveal in the caption that her daughter is now in her 30s, writing: "To my beautiful daughter Josephine. So thrilled to have celebrated your 30th birthday with you! I am so filled with pride."
People couldn't wrap their heads around the fact that Josephine, who they thought to be a teenager, was officially a thirty-something.
One fan penned: "The wang genes needs to be studied she freaking look like 16."
Another shocked fan said: "30?! I swear to god I thought she was 18 at first glance. She has your good aging genes! Congratulations› on both ur bday and good genes."
A third commented: "She looks like she can't be any older than 20, that's crazy."
Also weighing in was actress Sharon Stone who marveled at the fact that both their kids are adults. The Basic Instinct star went on to say: "We've known each other literal lifetimes."
Wang recently turned heads during an appearance at the US Open - again because of her youthful appearance.
Taking to Instagram earlier this month, Wang shared two images of her at the event alongside fellow designer Keith Lissner.
Wearing a blue US Open cap and a pair of oversized black sunglasses, Wang is seen smiling for a selfie.
And the fashion mogul's followers couldn't stop gushing over Wang's flawless appearance, with one person writing: "She looks like 20 wow amazing".
"Age is just a number," a second Instagram user added, with a third echoing these sentiments, writing: "Vera does not age".
"Beautiful," a fourth wrote. "I wish I could look this good at her age when I get there. Stunning girl."
As for how she has managed to retain her youthful appearance over the years, Wang cites her love of vodka, telling People: "One of the things I am known to like to do is have a vodka cocktail. There’s no question about that, I do. I have a vodka at some point after five or six o’clock, towards seven."