‘Barbie Dreamhouse Challenge’ Designers Freak out as Margot Robbie Makes Surprise Appearance to Crown the Winner

Margot Robbie isn’t leaving her Barbie World any time soon. On the heels of the new Barbie movie passing the $1 billion mark at the global box office, the actress and her fellow co-stars stopped by Sunday night’s (Aug. 6) finale of HGTV’s Barbie Dreamhouse Challenge to announce the winners of the competition show.

The four-part series — which was inspired and sponsored by Greta Gerwig‘s campy new flick — brought together designers from various HGTV shows to design different parts of a life-sized version of the iconic Dreamhouse. Each team of two represented a Barbie super-fan, who, if the team won, would get to spend a night at the pink oasis.

When it came time for host and supermodel Ashley Graham to announce the winners of the show, she instead introduced a “very special guest” to do the honors as she gestured to a video of Robbie, America Ferrera, Issa Rae and Simu Liu.

“Hi everybody, we’re from the Barbie movie,” Robbie said, leaving a shocked (and excited) look on each contestant’s face. “We cannot believe what amazing work all the teams have done to transform this amazing house.”

Following Liu and Rae’s drumroll, Robbie revealed that Brian and Mika Kleinschmidt had come in first place. The couple — who starred on HGTV’s 100 Day Dream Home — were crowned winners for their work on the early 2000s-themed backyard.

The designers later opened up to HGTV about the surreal moment in which they heard Robbie announce their names.

“In that moment you think to yourself, ‘Is this really what I do for a living? How amazing is this?'” Mika said. “As a little girl, I would have never imagined this would even be an opportunity for me.”

Brian added that it was “so exciting” to have the opportunity to compete on the miniseries.

“Barbie is part of a universal language — everyone around the world knows who she is,” he said. “The feedback we’ve received so far when it comes to this show has been amazing. So many people have told us, ‘I would live in that house in a heartbeat’ because it takes them back to their childhood.”

Barbie Dreamhouse Challenge is currently streaming on Max.