Amanda Seyfried poses with Lindsay Lohan and Lacey Chabert for ‘Mean Girls’ Walmart campaign.Photo:Elizabeth Stewart/ Instagram

BTS of the Mean Girls Reunion Walmart commercial, Amanda Seyfried, Lindsay Lohan, Lacey Chabert

Elizabeth Stewart/ Instagram

Amanda Seyfriedis channeling her inner Karen, 19 years later!

The actress, 37, reunited with herMean Girlscastmates — and her iconic look as character Karen Smith — forWalmart’s new campaign.

And in a new behind-the-scenes clip from the set, fans can now see just how she got ready for the role reprisal they’ve all been waiting for.

Prepping for the commercial, Seyfried gave the camera a cheeky wink as she got her brows done, before showing off a set of hot pink nails, which perfectly matched her pink top (as well as the energy of her beloved character).

“On weekends we wear pink,” Stewart wrote on Instagram. “BTS from@walmart#MeanGirlscommercial.”

Amanda Seyfried poses with Lindsay Lohan and Lacey Chabert for ‘Mean Girls’ Walmart campaign.Elizabeth Stewart/ Instagram

BTS of the Mean Girls Reunion Walmart commercial, Amanda Seyfried, Lindsay Lohan, Lacey Chabert

Of course, Seyfried’s mini makeup tutorial comes just days after it was revealed members of theMean Girlscast had reunited for Walmart’s new campaign.

On Wednesday, the first new ad showed the crew — including Lohan’s Cady Heron and Chabert’s Gretchen Wieners — all in new eras of their lives as they returned to North Shore High School. “Some things never change. On Wednesdays we wear pink, but now we shop Walmart Black Friday deals,” Cady says in the clip.

As Lohan, 37, told PEOPLE exclusively, it was “so nice being back together after all these years.”

“It was wonderful to spend the day with Amanda and Lindsay and it was so much fun getting to reminisce and be together again,” Chabert, 41, added.

“There’s something here for everyone (except for Gretchen Wieners),” he joked.

Never miss a story — sign up forPEOPLE’s free daily newsletterto stay up-to-date on the best of what PEOPLE has to offer, from juicy celebrity news to compelling human interest stories.

Mean Girlsisn’t the only cast reunion that Seyfried’s fans are hoping for, either. For September, she,Meryl Streep,Pierce Brosnan,Colin Firthand more spoke withVoguefor an oral history onMamma Mia!’s 15th anniversary. At the time, Seyfried made her thoughts clear about filming another one: “I dare you to show me one person who doesn’t want a thirdMamma Mia!”

“I’m up for anything,” Streep added when asked about reprising her character, who was killed off in 2018’sMamma Mia! Here We Go Again.

“… I told [producer Judy Craymer] if she could figure out a way to reincarnate Donna, I’m into that. Or it could be like in one of those soap operas where Donna comes back and reveals it was really her twin sister that died.”

source: people.com