Erika Henningsen, who plays the musical’s central role of Cady Heron, tells USA TODAY about 'Mean Girls’ evolution from screen to stage.

The new "Mean Girls" movie stars Angourie Rice as Cady Heron and Reneé Rapp as Regina George. Here's how the real-life ages of the cast compare to their characters.

Well, in the popular 2004 film there’s a scene where Aaron Samuels (played by Jonathan Bennett) turns to Cady Heron (Lindsay Lohan) in class and asks her what day it is.

Cady Heron may have grown up on an African savanna, but nothing prepared her for the vicious ways of her strange new home: suburban Illinois.

On October 3 at North Shore High School Aaron Samuels asked Cady Heron what day it was. She responded: "It's October third." And a national holiday was born.

Lindsay Lohan (far left) battles the Plastics in Mean Girls, written by Tina Fey. Cady Heron (Lindsay Lohan), a 15-year-old from Africa, embarks on her own personal safari when she enters a ...

"Hey, Rookie!" The "POOKIE'S REQUIEM" singer is Billboard's R&B Rookie of the Month for February. By Heran Mamo When Regina George asked Cady Heron if she thought Aaron Samuels’ hair “looks ...

On October 3rd, Aaron Samuels turned around in calculus to ask Cady Heron what day it was, and she told him that it was October 3rd. Thus history was made and we now all celebrate the third of the ...