You know what's not fetch? Realizing it's almost been 10 YEARS since "Mean Girls" was first released in theaters. That's right, we're getting old.

The film made superstars out of Lindsay Lohan and Rachel McAdams and became the "Heathers" of the 2000s. 

But while we're still quoting it today, a lot has changed in 10 years.

Ms. Lohan has been in and out of rehab and jail more times than we can count, Amanda Seyfried moved out of the background and into award-winning films like "Les Miserables," and Trang Pak is finally old enough to legally make out with Coach Carr.

So pull out your Burn Book and check out the gallery above to see how the stars of the film have changed since 2004.

And keep reading to find out 10 Things You Probably Never Knew About "Mean Girls."

1.) Lindsay Lohan & Rachel McAdams Originally Read for Each Other's Roles

When Lindsay first heard of the project, she was instantly attracted to the villainous Regina George -- something of a departure from the "good girl" Disney roles she had been playing.

She reportedly told director Mark Waters "This is exactly the part I want to play" -- but when "Freaky Friday" performed exceptionally well at the box office, the studio wanted her to play the lead, so she was cast as Cady instead.

Conversely, Rachel McAdams read for Cady, but when Lindsay was cast in the role the director decided she'd make a great Regina instead.

2.) James Franco Was Almost Aaron Samuels

Jonathan Bennett wasn't originally cast as high school hottie Aaron Samuels. In an interview with Cosmo, costar Daniel Franzese reveals that James Franco was considered for the part -- and another actor, who wasn't named, was cast and then fired before Bennett took over. 
3.) Regina's Hair Was Fake!

Sorry, but Regina George's hair was as fake as her mother's breasts. Rachel McAdams was just coming off the "The Notebook," where she sported a much shorter 'do. The bottle blonde look she had in "Mean Girls" was a wig.

4.) Amy Poehler Wasn't Just a Cool Mom, But A VERY Young One

Even though she plays Regina's mom in the film, Amy Poehler is only seven years older than Rachel McAdams in real life.

And, speaking of age, McAdams was also older than her Plastic costars. She has 8 years on Lohan, 7 on Seyfried and 4 on Lacey Chabert.

5.) Tina Fey Named Some Characters After Her Real Life BFFs

In her book "Bossypants," Fey revealed that Damian was named after her good friend and TV Guide writer Damian Holbrook. Glenn Coco, he's a real life bestie too!

6.) Amber D'Alessio Almost Did a Lot More with a Hot Dog

The film almost got an R rating, until some of the more vulgar lines were cut.

In the original script, Amber D'Alessio "masturbated with a hot dog." The line was changed to "made out with a hot dog." Jason was also originally supposed to ask Cady if her cherry was "popped." That question was changed to "Is your muffin buttered?"

7.) Lindsay Was a Fan of Samantha Ronson Before They Dated

When at the prom, Cady is surprised that she actually recognizes a song. The tune playing at the time: "Built This Way" by Samantha Ronson.

Though they didn't know each other at the time, the two would later date in real life.

8.) Someone at The While House LOVES "Mean Girls"

This tweet says it all:

9.) One of the Stars Went to "Homeland"

Though he had a bit part as Regina's sometimes-boyfriend Shane Oman in the movie, actor Diego Klattenhoff would later play a big role in one of our favorite shows: "Homeland."

The actor played the ever-dependable Mike on the Showtime series and currently stars on "The Blacklist."

10.) There's More "Mean Girls" Coming

Though the rumored reunion is officially off for now, Tina Fey is still working on a follow-up to the flick.

"It’s early in the process for the musical," she told the New York Times. "We’ve been enjoying trying to write. I wish so badly we could have had it done in some form for the 10th anniversary, but hopefully before the 15th."

2019 can't come soon enough!

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