See What Celebrities Are Dressing as This Halloween

 
Halloween is here, but celebrities have been wearing their costumes to parties all week! Gisele Bündchen and Tom Brady were inspired by The Wizard of Oz, channeling Dorothy and the cowardly lion at a private event, Paris Hilton was a dead ringer for Miley Cyrus at the Playboy Mansion Halloween party, and Alessandra Ambrosio added a little sex appeal to the Queen of Hearts. Meanwhile, John Stamos wore the horns of a demon, and Julianne Hough's Orange Is the New Black costume stirred up quite a bit of controversy. Take a look at all the stars who have gone out in costume so far this year, and don't forget to check back as the pictures continue to roll in!

Gisele Bündchen dressed up as Dorothy, while Tom Brady donned a cowardly lion costume at a private holiday bash in Rhode Island.

Nicky Hilton went with a classic schoolgirl costume for the Playboy Mansion Halloween party. 

Jenna Ushkowitz channeled a Top Gun fighter pilot at the Midori Green Halloween party in LA. 

Adam Lambert went totally goth for a Halloween party in Hollywood. 

Adam Lambert dressed as a genie for an event benefitting the Gay Men's Chorus of LA.

 

Jesse Tyler Ferguson and Justin Mikita went to a Hollywood Halloween party as 
Batman and Robin.

Kate Upton wore face paint and a fancy dress to an LA Halloween party.

Derek Hough looked like he was shooting for Billy Idol at the Casamigos Halloween Party.

Stephanie Pratt opted for an I Dream of Jeannie throwback at the Casamigos Halloween Party. 

Brody Jenner channeled the Day of the Dead vibe for the Casamigos Halloween Party. 

David Spade went to the Casamigos Halloween Party as Terry Richardson. 

Josh Duhamel shared his spectacular Day of the Dead costume with Fergie on his Instagram. 

Kelly Brook went to the Casamigos Halloween Party as a bloody Marie Antoinette.

Modern Family's Rico Rodriguez showed up at the Hub Network's Halloween Bash 
dressed as a zombie.

Amy Adams took her daughter, Aviana, to a costume party in LA; Amy was dressed as
Rosie the Riveter, and Aviana was a tiny Maleficent! 

Snooki and JWoww opted for a costume change at their Halloween event, switching it up as Tweedledee and Tweedledum. 

Ryan Seacrest haunted the Casamigos Halloween Party as the Phantom of the Opera. 

John Stamos looked devilishly handsome as a demon at the Casamigos Halloween Party. 

We're guessing Michelle Trachtenberg's costume for the Casamigos Halloween Party was something along the lines of a black widow. 

Molly Sims looked like she was aiming for a Chiquita Banana costume at the 
Casamigos Halloween Party. 

Cindy Crawford and her husband went as Guns 'n' Roses bandmembers Slash and Axl Rose
to the Casamigos Halloween Party.