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Abigail Breslin, August:Osage County

Dimitrios Kambouris/Getty Images for Chrysler

Little Miss Sunshine is all grown up…and now it's official!

Abigail Breslin turns 18 today! Although the young actress has displayed that she's way beyond her years, she is now a young adult.

From innocent and heartwarming roles in films like Little Miss Sunshine to playing a teenage accomplice to murder in Perfect Sisters, we've seen major transformations from the former child star.

Growing up before our eyes, we've witnessed the maturing of this actress both on and off screen. At age 16, Breslin shocked all of us with her risqué and sexy photo shoot with Tyler Shields and, and she did so again at age 17 when she posed provocatively for his The Dirty Side of Glamour author's series.

Let's not forget to mention her love interest! In November, we heard of her new boyfriend, 25-year-old musician Jack Barakat from the band All Time Low. The Call star's choices in both men and fashion have big-girl written all over it! Lately the actress has been showing us her sophisticated and grown-up style on the red carpet.

Now that she's turned into a grown woman, let's take a look back at her red carpet moments through the years.