Jennifer Garner channels her beloved ’13 Going on 30′ character for Halloween

Jennifer Garner delighted fans this Halloween by stepping back into the shoes of one of her most beloved characters.

The actress gained weight Instagram on Wednesday to unveil her costume as Jenna Rink from “13 Going on 30.”

During the hilarious clip, she is seen wearing her now iconic, brightly colored butterfly dress – instantly transporting fans back to 2004.

With her broad smile and unmistakable charm, Garner perfectly embodies her “30, flirtatious and blooming” character, reminding fans of the cheerful, magical spirit of the romantic comedy that remains a cult favorite nearly two decades later.

The nostalgic dress choice is not only a treat for fans of the film, but also marks a sentimental throwback for Garner herself.

The dress, originally worn in “13 Going on 30,” became a symbol of Jenna’s journey—a 13-year-old girl entering her 30s, navigating love, friendship, and career with an innocent wonder of great eyes.

Garner’s Halloween transformation instantly captured social media, with fans flooding her comments with memories of watching “13 Going on 30” for the first time. Many noted how timeless the look was and praised the actress for choosing a costume that resonated with so many generations.

Earlier this week, Garner already showed off her Halloween spirit by sharing a prank video of himself trying to get through a Halloween-themed experience. She titled the video “Moms in a Haunted House”.

“I don’t like it when they stalk us. Stop stalking!” she said during the clip, later adding, “There’s a person. I see you and I’m not afraid of you!