As a child, Julianne moved in with Ballas' family to pursue a career as a professional dancer

By Natalie Stone
Updated December 07, 2016 10:05 AM
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Credit: Source: Julianne Hough/Instagram

Before Julianne Hough and Mark Ballas were Dancing with the Stars pros, the longtime friends danced side-by-side in competitions as kids — and Hough has epic evidence to prove it!

Hough, who serves as a judge on the ABC reality dancing competition series and has two Mirror Ball trophies to her name, shared a throwback photo of herself alongside Ballas as adolescents on Tuesday.

Credit: Allen Berezovsky/Getty

In the photo, Hough and Ballas don all-white costumes — and are both are very, very tan. “#dancerbaby #pastlife #tanAF,” she captioned the Instagram picture, which also documented Ballas’ days wearing braces.

Prior to becoming a household name, Hough and her brother Derek moved in with Ballas’ family (his parent’s Shirley and Corky were family friends) as children — Julianne was just 10 and Derek 13 — to train as ballroom dance pros at the prestigious London dance school Italia Conti Academy of Theatre Arts.

RELATED VIDEO: Here’s How to Get Julianne Hough’s Glowy, Dewy Complexion

On Nov. 25, PEOPLE exclusively reported that Ballas wed his bandmate BC Jean at a venue north of Los Angeles — and tapped Derek to be his best man.

After watching his best friend say “I do,” Hough took to Instagram to pen a congratulatory message in honor of the happy couple.

“Such an honor to be the best man at my brothers wedding. Witnessing their love be sealed under a beautiful Oak tree in front of family friends was such a special moment. Like the tree May you Stand together tall and proud,” he captioned the image of the newlywed pair. “May you always Go out on a limb for one another. To Stay grounded and dig your roots in deep so that you may weather any storm . And always continue to grow, stronger and higher reaching towards the heavens. And to always enjoy the view. Love you two.”