Here's what teen actress who played Jennifer Garner in 13 Going On 30 looks like now as she turns 30

13 GOING On 30 actress Christa B.Allen sent fans into meltdown on Thursday evening as she turned 30.

The star gained a legion of followers when she played the younger version of Jennifer Garner's character Jenna Rink in the hit 2004 romantic comedy.

And Christa finally got to be "thirty, flirty and thriving" herself as she celebrated the milestone birthday with a lavish dinner with her closest friends.

The Revenge actress looked worlds away from her fresh-faced self in the movie as she glammed up for the big night.

She stunned in an embellished semi-sheer dress and heels, styling her black hair in a sleek low ponytail.

The Ghosts Of Girlfriends Past star treated her loved ones to a sushi dinner at Shoku in Los Angeles

Jennifer Garner herself paid tribute to her former costar on Instagram, commenting on her latest video: "Happy birthday!"

Feel-good flick 13 Going On 30 tells the story of 13-year-old Jenna, who hates life as a teenager in 1987. 

She dreams of being a successful and sophisticated adult, but her wish comes true when she wakes up 17 years in the future, as a 30-year-old. 

Christa was in fact 13 when she starred in the movie, which was her breakout role, and fans are amazed at how much she looks like her on-screen counterpart, Jennifer, now 49, as she gets older.  

Aside from Jennifer, she appeared alongside a slew of Hollywood heavyweights in the movie, including Brie Larson, Mark Ruffalo, Andy Serkis and Judy Greer.

Christa often references the film on TikTok and Instagram, even wearing Jenna’s colorful dress as she recreated the party scene where they dance to Michael Jackson’s thriller. 


“I am so grateful, and still so grateful to be a part of that film, and that we get to share it now,” she said. 

As well as dressing up as the older Jenna, Christa also recreates her 80’s teenage outfits from the film, complete with over-the-top blue eyeshadow, scrunchies and chunky belts.

Her nostalgic videos have racked up millions and millions of views, as fans couldn’t believe"Jenna" was turning 30.

Christa acknowledged the fan love recently, tweeting: "When I started my TikTok journey 2 years ago, I had no idea how much people would love 13 Going on 30 content."

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