Because you like Janis Ian in Mean Girls

Danny Zuko's car is auto-matic. Its system-matic. Its hyyyyydro-matic. Why, its greased lightning! See them in Grease.

The self-described "ghost with the most" knows the ins-and-outs of specter life like no other. Just ask him. See them in Beetlejuice.

Stubborn, impulsive, and fun-loving, Hallie Parker is not afraid to devise some schemes to bring her family together. See them in The Parent Trap.

Mother Gothel is a great mother as long as you never, ever, break the rules. See them in Tangled.

With her mastery of martial arts and her prodigious building skills, Wyldstyle projects an air of invincibility. But she's not bulletproof. See them in The Lego Movie.

Greg Heffley will be famous someday, but now he's stuck in class with morons. See them in Diary of a Wimpy Kid.

Anger is a cantankerous hothead whose job is to get others riled up. See them in Inside Out.

Quirky teen Carly Shay is the director of her own life story. See them in iCarly.

For Wreck It Ralph, it's not easy being the bad guy. Especially when you've been designed to destroy but really desire love. See them in Wreck-It Ralph.

Patrick Verona is a bad boy who's after a tough girl. See them in 10 Things I Hate About You.

Scar is sneaky, snarky, and always striving for more power. See them in The Lion King.

A karate master/rocket scientist/squirrel, Sandy Cheeks is the only one who can clean up the other resident's messes in Bikini Bottom. See them in SpongeBob SquarePants.