![2016 Butterfly Ball - Red Carpet - Arrivals 2016 Butterfly Ball - Red Carpet - Arrivals](https://api.time.com/wp-content/uploads/2016/10/lindsay-lohan-mean-girls-day.jpg?quality=85&w=2400)
It’s October 3rd, which as all true Mean Girls fans know, is the day that Aaron Samuels asks Cady Heron what the date is in the now-cult classic movie Mean Girls.
In the time since the movie debuted, fans have used October 3rd as a way to celebrate the zingy one-liners and quirky humor of the film, often posting memes of Lindsay Lohan, who played Cady Heron in the movie, along with the hashtag, #whatdayisit, alluding the question posed in the memorable scene.
This year, however, Lohan got in on the fun herself. Not only did she post a selfie with the hashtag, #whatdayisit, but she also shared an Instagram of a conversation that she and her friend had about Mean Girls Day, which just goes to show that stars really are just like us.
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Write to Cady Lang at cady.lang@timemagazine.com