Photo by Charley Gallay/Getty Images for Netflix
Millie Bobby Brown Transforms Into a Sexy ‘Elf on the Shelf’ for New Holiday Campaign
Millie Bobby Brown is officially kicking off the holiday season. The Stranger Things star transformed into her own festive character for a new campaign, posing as a cheeky “Mill on a Sill” to promote her Florence by Mills Fashion Softie Seamless set.
In a series of photos and videos shared on Instagram on Thursday, November 13, Millie looked straight out of Santa’s workshop in a bright red crop top and matching shorts. The look was styled with a thick black belt, furry white-trimmed boots with bells and an extra-long Santa hat. With her long brunette hair cascading over her shoulders, she perched on a decorated fireplace mantel and captioned the post, “Mill on a Sill,” a playful twist on the classic Elf on the Shelf trend.
The fun continued in a second video where she joked to fans, “Hi guys, I’m wearing a really understated outfit.” Laughing, she added, “What better way to go to sleep on nice Christmas Eve than in this cozy, modest, understated outfit,” as she showed off the Softie Seamless set available on her Florence by Mills website.
Millie also posted behind-the-scenes footage from the shoot, including a sultrier pose of her lying on her side and a playful clip of her twirling the long tail of the Santa hat.
This year has been a major one for the actress. Millie married Jake Bongiovi in May 2024, and earlier this year, the couple welcomed their baby girl through adoption — a chapter of life she is fiercely protective of. When asked about her daughter’s personality in a November 2025 British Vogue interview, Millie pushed back with firm boundaries. “For me, it’s really important to protect her and her story until she’s old enough to potentially one day share it herself,” she said. “It’s not my place to purposefully put her in the spotlight unwillingly.”
The 21-year-old also opened up about the intense public scrutiny she’s faced. Calling the critical commentary around her appearance “wrong” and “bullying,” she added, “If me being blonde or wearing more make-up really bothers you, I’m going to address it – not just for myself, but for every other girl who wants to try a new hairstyle or wear a red lip. It’s, like, get off my f—ing case, you know? I am 21. I am going to have fun and play and be myself.”
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