watch Mean Girls november 20 at 9/8c

Cady Heron is a cultural blank slate when she first sets foot on the grounds of North Shore High School in a small town outside of Chicago, Illinois. After living in Africa, Cady, now a junior, has no idea how "wild" things can be in civilization until she crosses paths with one of the meanest species of all, the "Queen Bee," who at this particular high school is the cool and calculating Regina George. But Cady doesn't just cross paths with this Queen Bee--she really stings her when she falls for Regina's ex-boyfriend Aaron Samuels. Now Regina is set to sting back by pretending to still like Aaron so he won't go out with Cady, all the while pretending to be her friend. With no choice but to use the same M.O. to stay in the game, the "Girl World" one-upmanship escalates until the entire school gets dragged into a first-class mean-fest.

Here's a quick way to earn some cool points - check out our quiz and other Mean Girls fun:

Videos
Can't wait for the show? Catch up with some very funny clips.

Which Mean Girl are you?
Find out if you are the meanest chick in high school.

Top 10 High School Rules
Do you have what it takes to roam the halls of North Shore High? Check this list twice to see if you pass Mean Girls 101!