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Mia Talerico, who starred in the Disney Channel show "Good Luck Charlie" starting in 2010 when she was an infant, is officially a high schooler.

Known to many as the blond pigtailed Charlie Duncan, Talerico shared a first day of school photo to her Instagram on Tuesday showing that she's all grown up. In the picture, she's posing in front of a house with a chalkboard that reads "first day 9th grade 8-21-23."

Leigh-Allyn Baker, who played Talerico's mother in the series, commented several crying emojis under the post, adding: "She's so big! Mia, you're beautiful!"

Talerico thanked her on-screen mom for her support, replying, "Thanks Mama Leigh."

According to her IMDB page, Talerico has a handful of other acting credits under her belt, including the web series "Mani."

"Good Luck Charlie" ran from 2010-2014. As the series came to a close, the family comedy introduced Disney Channel's first same-sex couple, two lesbian moms, in 2014.

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