It's October 3rd: Lindsay Lohan and costars celebrate 'Mean Girls' Day

A screenshot from Lindsay Lohan's Instagram account in celebration of Mean Girls Day. Can you believe this movie was released in 2004?

If you still love and quote the movie "Mean Girls," then you may have realized Saturday is Oct. 3.

During a short scene in the movie when things are really starting to take off between Cady Heron (Lindsay Lohan) and her love interest Aaron Samuels (Jonathan Bennett), he turns to her in math class and asks what day it is. 

She replies, "It’s October 3rd."

The day has been dubbed the unofficial Mean Girls Day. Lohan and some of her former co-stars posted on social media to celebrate:

 

And even Cady's friend Damien.

 

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