Kim Zolciak is a red-haired bombshell in throwback pics (PHOTO)

This is a great #TBT.

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Zolciak is throwing it back this Thursday. She’s has had stints on The Real Housewives of Atlanta, Don’t Be Tardy and Dancing with the Stars, and now has posted one of the most insane celebrity throwback pics we’ve ever seen to her Instagram account this week, causing more than a few double takes, we’re sure.

Zolciak says she was only 15 when the photo was taken, showing her and a friend in a photo strip from a booth.

“Look what I just found… lol I’m on the right I was 15 years old!!” she captioned the adorable find. “#IReallyThoughtIWasSomethingBackThen #PhotoBoothsWereTheBomb.”

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A post shared by Kim Zolciak-Biermann (@kimzolciakbiermann)

The throwback photo shows a barely recognizable Zolciak with bright red hair, styled in that classic ’90s super voluminous, center-parted beach wave. She’s wearing matching bright red lipstick, and hamming it up with her friend, who kisses her cheek in one photo and grins alongside her in another.

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And of course, Zolciak took the opportunity for a little bit of product placement as well, because what sort of TV personality would she be if she didn’t?

“It goes to show you that @expresssmileatlanta helps keep my teeth as white as they were then,” she added in the photo’s caption. “Use my code ‘KimWhiteSmile’ and it’s only 20 dollars.”

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Are you surprised at how different Zolciak looked when she was a teenager? Head down to the comments and let us know what you think.