Halloween is upon us and some of our favorite celebs are flooding Instagram and Twitter with their crazy and spooky costumes. We have singer Ricki-Lee as a blood-thirsty zombie, Paris Hilton as a sexy Minnie Mouse and Katy Perry as a Cheeto (very creative).
A few Hollywood stars even went completely unrecognizable like "Arrow" star Colton Haynes as Princess Fiona from "Shrek" and comedian/actor Jimmy Carr as a bald, wrinkly old man. (Last year model and host of "Project Runway" Heidi Klum dressed up as an old woman).
The day is just getting started, so we can't wait to see what other creepy and ghoulish costumes celebrities will wear this year. Check out our slideshow of celebrity Halloween costumes above and tell us which one is your favorite.
