'Lady Bird' star Beanie Feldstein wore her high school prom dress to the 2018 SAG Awards

Where is your high school prom dress right now? Gathering dust in the back of your closet -- or maybe at the bottom of a heap in your storage closet?

"Lady Bird" star Beanie Feldstein decided to save her prom dress from that sad fate by giving it another whirl. That's right: The star wore her prom dress to the 2018 SAG Awards.

“I put it on and it fit, surprisingly maybe better than it did in high school! I looked at myself and I was like, WHAT!? and my mom and her best friend were just laughing so hard, like, ‘You have to wear it! There’s just no other dress that would be better,'" she told The Cut.

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Twitter loved that Beanie honored her "Lady Bird" character with the dress: "My heart!" one fan proclaimed.

Now 24 and a supporting character in one of the biggest films of the year, the actress is definitely one to watch in 2018! Say goodbye to those high school days, girl.

Although we loved Beanie's look, we also couldn't get enough of the more glittery styles that dominated the red carpet. From sequins to feathers and everywhere in between, here are all the red carpet looks.