SHE first found fame on The X Factor back in 2008.
And, according to some people, Diana Vickers still looks as young and fresh-faced as she did back then.
The singer took to her page to recall a hilarious situation, when she was asked for ID in the pub.
Diana had been wanting to order a beer, and when she was asked for ID, she showed her passport on her phone.
"I was like, 'Babe, I'm 32!'" Diana continued.
The bar lady said she "didn't look it", and said she couldn't serve her because she didn't even look over 25.
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"I was secretly loving it but also just wanted my drink," she said.
And when she asked if she was going to serve her, the bar lady then said that she was going to have to ask Diana to leave.
So she and her friends went to the pub next door, and were laughing about the situation when Diana decided to ask the barman at the new pub how old he thought she looked.
"He looks at me and he goes, 'Uhhh, early 40?'" she said.
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"Early 40s?" Diana said, aghast.
"I've honestly never been so confused about like who I am or my identity my entire life.
"I'm telling you now that knocked me down a peg or two, that really put me back in my little box."
People were quick to comment on the video, with one writing: "You should’ve whipped out the x factor videos on youtube!"
"I am more shocked that these bar staff don't know who the icon diana vickers is," another added.
"Should’ve whipped out the 'Do you not know who I am?'" a third laughed.
"This has killed me," someone else said.
"I ask other crew on board how old I look - normally get mid 20s If it begins with a 3 I get offended even though I’m 33!"
While others were more interested in the top Diana was wearing - as the white neckband gave it a religious feel.
"I thought you were an actual Diana Vicar!!" one laughed.
"Thought you were a nun for a minute," another said.
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"Have you taken holy orders? #ReverendDiana," a third joked.
As someone else hilariously asked: "Can you do 5th July for a christening?"