Stars went all-out.
The most adorable thing you'll see all day. All week.
And there's not one black cat in the bunch.
WE ARE OLD. WE ARE ALL SO OLD.
Killer costume ideas from models, designers, and street-style stars.
So. Many. Harley. Quinns.
We've got you covered. Literally.
Costume store all sold out? We've got you covered.
And her cousins are little superheroes.
These stars definitely look scary—and not in a good way.