Jennifer Garner delighted fans this Halloween by reprising the role of one of their most popular characters.

The actress revealed her costume as Jenna Rink from “13 Going on 30” on Instagram on Wednesday.

During the hilarious clip, she is seen in her now-iconic colorful butterfly dress, which immediately takes fans back to 2004.

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

The nostalgic choice of clothing is not only a delight for fans of the film, but also represents a sentimental throwback for Garner herself.

The dress, originally worn in “13 Going on 30,” became symbolic of Jenna’s journey – a 13-year-old girl entering her 30s and navigating love, friendship and career with an innocent, wide-eyed look of wonder .

Garner’s Halloween transformation immediately captivated social media, where fans flooded 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 showed off her Halloween spirit by posting a funny video of herself trying to survive a Halloween experience. She captioned the video, “Moms in a Haunted House.”

“I don’t like it when they come after us. Don’t come after us!” she said during the clip, later adding, “There’s one person. I see you and I’m not afraid of you!”