'Mean Girls': Then And Now

Dust off the sexy Santa suit and tune up your "Jingle Bell Rock" rendition: 'Tis the season to get "Mean." MTV is embracing all that is fetch this weekend with a double feature of "Mean Girls," starring Lindsay Lohan, Rachel McAdams and Amanda Seyfried. And trust, if you even think about missing out on the fun, you'll earn yourself a permanent spot in our burn book, beyotches.

In honor of the always funny flick (airing Sunday at 2 p.m. and 9 p.m.), we're taking a look at the titular girls (plus one guy!) then and now. Keep reading to reconnect with your favorite Plastic. You go, Glenn Coco!

Lindsay Lohan

Then: Lindsay had racked up a resume of family-friendly fare, including "The Parent Trap" and "Freaky Friday," before tripping through the teen jungle as transfer student Cady Heron. The movie debuted shortly before Lindsay's 18th birthday and remains her most indelible performance.

Now: There's no denying the last few years have been difficult ones for Lindsay, with a handful of arrests and a dearth of meaty roles. She was primed for a comeback with the Lifetime movie "Liz & Dick," but the Elizabeth Taylor biopic was mostly panned by critics. Lindsay can next be seen in "The Canyons" and "Scary Movie 5."

Rachel McAdams

Then: 2004 was a breakout year for Rachel, who not only starred as queen bee Regina George in "Mean Girls," but also romanced Ryan Gosling in the beloved Nicholas Sparks film "The Notebook."

Now: While we're still dreaming of a Rachel-Ryan reconciliation, the 34-year-old continues to be one of Hollywood's most reliable players, with parts this year in "The Vow" and "Sherlock Holmes: A Game of Shadows." Rachel will revisit time travel in her next film, the romance "About Time."

Amanda Seyfried

Then: "Mean Girls" marked Amanda's feature film debut after years of work in soap opera world ("As the World Turns," "All My Children"). And while her character Karen Smith wasn't too bright, at least she could predict the weather with her boobs. So there's that.

Now: Amanda will put her Plastics singing practice to good use as Cosette in the upcoming film adaptation of Victor Hugo's classic "Les Miserables." In the new year she'll play porn star Linda Lovelace in the biopic "Lovelace." Coincidentally, her "Mean Girls" co-star Lindsay was cast to play the adult performer in a separate film before being replaced by Malin Akerman.

Lacey Chabert

Then: Perhaps the most seasoned performer of the bunch, Lacey spent six years on "Party of Five" before her perpetually put-upon Gretchen Wieners was recruited to join Regina's clique.

Now: Lately Lacey's been heard not seen, doing voiceover work for TV shows like "Transformers: Rescue Bots" and "Allen Gregory," though she can be spied in upcoming films "Telling of the Shoes," "The Lost Tree" and "Saving Seymour."

Jonathan Bennett

Then: Jonathan's pretty boy Aaron Samuels was the object of affection for two Plastics: Regina and Cady. (That never ends well...)

Now: Jonathan's been busy with television work, though he will star alongside former co-star Lacey in the upcoming film "Anything Is Possible."

Find out what the "Mean Girls" were really like in high school by clicking on the video above!

"You're plastic. Cold, shiny, hard plastic." Grab the microwave popcorn and tune in to MTV on Sunday at 2 p.m. and 9 p.m. when we air Lindsay Lohan’s mid-aughts classic "Mean Girls"!

What's your favorite "Mean Girls" moment? Tell us in the comments and on Twitter!