ET takes a look at some of the little-known facts about the modern classic.
ET spoke with Seyfried at the Good for a Laugh benefit in LA on Friday night.
The actress says she felt like the 'luckiest person in the world' on the set of the 2004 movie.
The actress talked 'Party of Five,' her new Hallmark Valentine's Day movie and the upcoming 15th anniversary of 'Mean Girls.'
ET's Katie Krause spoke with Chabert at Hallmark Channel And Hallmark Movies & Mysteries Winter 2019 TCA Event in Pasadena on Feb. 9.
The actress opened up to ET about her beloved teen comedy at the premiere party for her new reality show in New York City.
Cady Heron and Aaron Samuels together again!
The 'Mean Girls' writer gushed over the singer's epic homage.
ET spoke with Fey at the opening night of 'The Cher Show' on Broadway in New York City.
Here are some of the best moments from the making of Grande's epic, homage-filled new video.
The 25-year-old pop star isn't pulling punches for her new video.
ET breaks down the theory that Grande's new music video for 'Thank U, Next' will be inspired by 'Mean Girls.'
Fans of the singer have been piecing the clues together, and needless to say, this music video is going to be 'fetch.'
ET checks in with some of the iconic movie's stars in honor of 'Mean Girls' Day, Oct. 3.