The Bravo personality's twins channeled Olivia Newton-John and John Travolta for the Oct. 31 holiday

By Natalie Stone
Updated November 01, 2016 05:51 PM
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Credit: Rob Kim/Getty Images

Kim Zolciak-Biermann’s twins took it back to 1978 for their Halloween costumes this year!

To celebrate the Oct. 31 holiday, the Don’t Be Tardy star’s 3-year-old twins — daughter, Kaia Rose, and son, Kane Ren — dressed up as Grease‘s Sandy (played by Olivia Newton-John) and Danny (played by John Travolta), complete with all-black shirts, pants and leather jackets.

“Sandy and Danny. thx @nikitpressley for the costume idea! She picked last year and this year,” Zolciak-Biermann, 38, captioned the first of many Instagram photos of her twins dressed as the musical film’s characters.

To complete their looks, Kaia curled her blonde hair, wore a waist-high belt, red shoes and red lips while Kane went with slicked-back dark hair, black converse and dark sunglasses.

“Sandy and Danny!” the reality star said in a video of the adorable siblings as they posed in character.

The mother of six also shared a group photo of her children — minus her eldest daughter, Brielle, who stayed home to pass out candy — dressed up in their costumes. “Sooooooo incredibly blessed and grateful,” the Bravo personality captioned the sweet pic.

Don’t Be Tardy airs Wednesdays at 10 p.m. ET on Bravo.