No one takes Halloween as seriously as celebrities. Perhaps it's because they know they're going to get photographed or that they really love to invest their fortunes in time-specific costumes. Regardless, there are some celebrities that are so good at dressing up for the holiday that you can't even tell it's them. From face paint to full on prosthetics, check out all of the celebs who completely turn into different people (or things!) on Halloween.
Rihanna as Raphael from Teenage Mutant Ninja TurtlesSplash News
Only Rihanna could make green face paint and a turtle shell backpack look cool.
Heidi Klum as an old personGetty Images
Halloween costumes are an art form for Heidi Klum. She went all out with her old lady costume, adding fake wrinkled skin and veins to her body.
Michelle Trachtenberg as Sally from "The Nightmare Before Christmas"Getty Images
Michelle even had her creepy "Nightmare Before Christmas" pose down.
Colton Haynes as Fiona from "Skrek"Splash News
Colton loves to commit to Halloween, but his Princess Fiona look is hard to top.
Shenae Grimes as Frankie SteinGetty Images
From the doll-like pose, to the blue contacts, to the spot-on hair and makeup. Shenae's Frankie costume is A++.
Katy Perry as Freddy Mercury
Katy took inspiration from one of her musical heroes and transformed not only her look into Freddie Mercury, but she adopted his mannerisms too. V method.
Miley Cyrus as Lil' Kim
If it weren't for the instantly recognizable tattoos, we'd never guess this was Miley Cyrus.
Beyoncé as Storm
If you thought Beyoncé was above dressing up for Halloween, think again.
Kim Kardashian as Ann Wintour
The tweed, the bob, the sunglasses. Kim Kardashian was basically Anna Wintour's long lost twin.
Fergie as Elvira
The high slit and even higher hair transformed Fergie into Elvira completely.
Demi Lovato as a zombieGetty Images
Demi Lovato's zombie costume will haunt you forever. Bye!!!