Don't you just love how child stars grow up before our eyes?

We first got to know Mackenzie Foy, now 15, when was just around 11-years-old starring in "The Twilight Saga: Breaking Dawn - Part 1," in just a quick flash clip of the 2011 film.

She played Renesmee, the child of Robert Pattinson and Kristen Stewart's characters, who we saw much more of in "The Twilight Saga: Breaking Dawn - Part 2," the next year.

But, she's since totally grown up, and we can't believe how adult she looks.

On July 28, she shared a photo alongside "Gilmore Girls" stars Lauren Graham and Alexis Bledel on Instagram.

"Soooo this happened!!!😁😬😁 #gillmoregirls #fangirling #coffee," she wrote next to the pic.

Soooo this happened!!!😁😬😁 #gillmoregirls #fangirling #coffee

A photo posted by Mackenzie Foy (@mackenziefoy) on

 

What a difference a few years makes, right?

And, check out this selfie she shared a few months ago. She's developed into such a beautiful young lady.

😊

A photo posted by Mackenzie Foy (@mackenziefoy) on

 

News just broke on July 27, that the now-teen star is set to star in the upcoming dance film "The Nutcracker," which will be a huge move for her career.

Congrats!