Josh Allen and Hailee Steinfeld are "in wonderland" together with their baby daughter.
The 29-year-old Oscar nominee shared a peek at their first Halloween as a family of three in the Nov. 4 edition of her Beau Society Substack newsletter, which included snaps of the costumes they wore to their extravagant "Alice in Wonderland"-themed bash, "Allens in Wonderland."
In the photos – which she also shared on Beau Society's Instagram – Steinfeld, donning a black velvet dress, a choker, crown and cape, was the Queen of Hearts while her husband, 30, matched in a black outfit that had hearts emblazoned across the chest. He, too, paired the look with a cape and crown.
Their infant daughter, Harper Haize
Allen, appeared to be dressed as Alice, based on a photo showing the bottom of her blue skirt with white tights and black Mary Jane shoes.
The NFL quarterback and "Sinners" actress celebrated the holiday two days late, presumably due to Allen having standing Sunday plans out on the field; the Buffalo Bills defeated the Baltimore Ravens 36-10 in a home turf game on Nov. 1.
"You never would’ve known we were two days late. Everyone showed up in great costumes, with the best energy, and excited to have fun on a Monday night in November," Steinfeld wrote. She also revealed that she wanted to use the theme for their previous celebration but couldn't because "we weren't married ;)."
Steinfeld revealed her pregnancy in December, seven months after the two were married in May 2025.
What we know about Hailee Steinfeld and Josh Allen's daughter, Harper
Though the couple has largely kept their high-profile relationship private since they were first linked together in 2023, Steinfeld has been open about some aspects of motherhood in her newsletter over the past several months, including Harper's milestones in her first year.
On Sept. 23 – more than five months after revealing Harper's birth on April 2 – Steinfeld revealed the little one had started crawling.
"Harper is totally crawling, so hanging out with her on our living room floor with a pile of books and toys has become my new favorite hobby," she wrote, according to Buffalo's WGRZ-TV. "I love watching her flip through a picture book, then suddenly get bored of it and crawl over to me as fast as she can. It’s like she’s saying, 'Look at me go, Mom!'"
The "Starving" singer went on to acknowledge, "I'm not at all ready to think about her talking — she’s growing so fast!!"
Steinfeld echoed this sentiment in her Nov. 5 appearance on "Live with Kelly and Mark," in which she promoted her upcoming animated film, "Hexed."
"I feel like she's 6 months and four weeks and also five years old. Time is crazy, how it works. She is totally on the move. This girl is crawling around," she said. "And it's so funny – it's so true with what parents have always said: You will be convinced your child is a genius when they're doing everything right on track."
She joked, "But she's crawling already! She's got to be a genius!"
In an Oct. 9 newsletter Steinfeld gushed, "One of my favorite morning rituals is picking up Harper — both of us still in our PJs — walking barefoot into the backyard and saying 'hi sun!' It’s the biggest mood-boost in the world." She followed this by answering a question about "a small everyday joy that feels like magic" in a Nov. 2 newsletter by writing, "Watching my baby girl smile and laugh with her dad, my incredible husband."
In a September Q&A with readers, she teased that her favorite song to sing to her daughter is "an original," without sharing further details.
This article originally appeared on USA TODAY: Hailee Steinfeld reveals baby's first Halloween costume with Josh Allen
