There's never a dull moment during
Halloween! Gisele Bündchen and Tom Brady were inspired by
The Wizard of Oz, channeling Dorothy and the cowardly lion at a private event, and Heidi Klum was almost unrecognizable as an old woman. Meanwhile, Miley Cyrus channeled Lil' Kim, Demi Lovato wasn't afraid to get a little bloody and creepy, 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 were out in full costumed force this year!
Sandra Bullock and Melissa McCarthy had matching fisherman costumes during their LA Halloween outing.
Demi Lovato looked terrifying in the best way at her LA Halloween party.
Molly Sims walked around LA as a grown-up version of Annie.
Alyson Hannigan & Alexis Denisof
Kate Moss and Jamie Hince donned Day of the Dead looks for Jonathan Ross's Spooktacular Halloween Bash in London.
Simon Pegg relived his Shaun of the Dead days as a zombie while attending Jonathan Ross's Spooktacular Halloween Bash in London.
Julie Bowen dressed up as Psy's sidekick from his "Gangnam Style" video to match with her son.
David Arquette attended a Halloween party as Bozo the Clown.
Iggy Azalea went all out for her Cruella de Vil costume at the VEVO Halloween showcase in London.
Kelly Osbourne went for a Carrie look for Halloween in LA.
Bette Midler got into the Halloween spirit at the annual Hulaween in the Big Easy event in LA.
Adam Levine and Behati Prinsloo wore classy masquerade ensembles.
Modern Family's Rico Rodriguez showed up at the Hub Network's Halloween Bash
dressed as a zombie.
Isla Fisher and Sacha Baron Cohen's costumes for the Casamigos Halloween Party
were way out of left field.
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.
JWoww went all out as the Queen of Hearts at the Night of the Living Drag event
she hosted with Snooki.
Jessica Alba channeled Cher's character from The Witches of Eastwick.
Bethenny Frankel channeled old-Hollywood glamour at Heidi Klum's
annual Halloween party in NYC.
January Jones dressed up as Betty Draper for Halloween.
Lily Allen dressed up as an alien for the UNICEF UK Halloween Ball in London.
Heidi Klum was nearly unrecognizable as an old lady at her annual NYC Halloween party.
Paris Hilton hit a bull's-eye with her Miley Cyrus costume for the Halloween party
at the Playboy Mansion.
Lorde looked like she was going goth at London's VEVO Halloween Showcase.
Martha Stewart attended the Hub Network's Halloween Bash in LA as Glinda the Good Witch.
Katie Couric attended NYC's annual Hulaween in the Big Easy event in
what looked like a Dolly Parton getup.
Liv Tyler looked ghoulish while out trick-or-treating in NYC.
Alessandra Ambrosio dressed as a cat while taking little Noah out for a
trick-or-treating excursion in LA.
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!
Seth MacFarlane dressed up as a Civil War soldier for Halloween.
Kate Upton wore face paint and a fancy dress to an LA Halloween party.
Josh Duhamel shared his spectacular Day of the Dead costume with Fergie on his Instagram.
Snooki was dressed to the nines as a snow queen of sorts at her Night of the
Living Drag event with JWoww.
Matt Lauer dressed up as Pamela Anderson from Baywatch.
Miranda Kerr dressed up as a cat, while her son Flynn went as Superman.
Kelly Ripa and Michael Strahan were Miley Cyrus and Robin Thicke for Halloween.
Kelly Ripa and the Live With Kelly and Michael team also dressed up as characters
from Sons of Anarchy.
Miley Cyrus dressed up as Lil' Kim from the 1999 VMAs.
Snooki and JWoww opted for a costume change at their Halloween event, switching it up as Tweedledee and Tweedledum.
Shenae Grimes dressed as Poison Ivy from Batman at the Midori Green Halloween party in LA.
Gisele Bündchen dressed up as Dorothy, while Tom Brady donned a cowardly lion costume at a private holiday bash in Rhode Island.
Kelly Brook went to the Casamigos Halloween Party as a bloody Marie Antoinette.
Christina Milian stood out at the Midori Green Halloween party in LA, despite wearing a camouflage ensemble.
The Good Morning America team all donned costumes for Halloween.
Julianne Hough dressed up as Crazy Eyes from Orange Is the New Black
for the Casamigos Halloween Party, and she apologized for her costume.
After dressing up as Crazy Eyes from Orange Is the New Black for Halloween on Friday, Julianne Hough took to Twitter to issue an apology. For an LA bash, she wore dark makeup, stirring up controversy with her TV-inspired costume. "I am a huge fan of the show Orange Is the New Black, actress Uzo Aduba, and the character she has created," Julianne tweeted. "It certainly was never my intention to be disrespectful or demeaning to anyone in any way. I realize my costume hurt and offended people and I truly apologize." Since then, her brother Derek Hough has also taken down the picture of her costume that he posted on Instagram.
Vanessa Hudgens had an interesting take on an angel for the Casamigos Halloween Party.
Lauren Conrad kept it simple as a fairy for a Halloween party in LA.
Stephanie Pratt opted for an I Dream of Jeannie throwback at the Casamigos Halloween Party. Jenna Ushkowitz channeled a Top Gun fighter pilot at the Midori Green Halloween party in LA.Sandra Bullock was in full Day of the Dead garb as she took her little skeleton Louis
to a costume party in LA.
David Spade went to the Casamigos Halloween Party as Terry Richardson.
Adam Lambert went totally goth for a Halloween party in Hollywood.
Alessandra Ambrosio went to the Casamigos Halloween Party as a sexed-up Queen of Hearts. Josh Duhamel and Fergie dressed up as Riff Raff from Rocky Horror Picture Show
and Elvira for a party in LA.
Adam Lambert dressed as a genie for an event benefitting the Gay Men's Chorus of LA.
Alessandra Ambrosio and her son, Noah, looked adorable as matching devils at a fair in LA.Willie Geist and Carmen Electra teamed up for Baywatch costumes.
Neil Patrick Harris and David Burtka took to Instagram to post their Alice in Wonderland
group costume!
Nicky Hilton went with a classic schoolgirl costume for the Playboy Mansion Halloween party. At the Casamigos Halloween Party, Hilary Duff showed up as a mouse. Duh.
Carson Daly and Erik Estrada donned CHiPs outfits. Ahna O'Reilly wore a mask
for a Halloween bash in LA.
Brody Jenner channeled the Day of the Dead vibe for the Casamigos Halloween Party.
Jesse Tyler Ferguson and Justin Mikita went to a Hollywood Halloween party as
Batman and Robin.
Kristin Chenoweth dressed as a S.W.A.T. team member and posed with a Storm Trooper in LA.
Derek Hough looked like he was shooting for Billy Idol at the Casamigos Halloween Party.
Dave Walton was the phantom of the opera.
Bethenny Frankel wore a colorful getup for Halloween.Padma Lakshmi and Susan Sarandon
Yikes! The Top Chef host and Oscar-winning actress creeped us out when they transformed
into this spooky bride and groom.
Neil Patrick Harris & David Burtka
But seriously, how adorable is this family with Classic Monsters?!
Nicki Minaj
Nicki tweeted: "Officer Minaj. Who wants to get cuffed?" Maybe someone should tell her
this is not how police dress?
Beyonce
Like we didn't already know Queen Bey was an angel sent from above!
Ben Affleck, Jennifer Garner, Violet, Seraphina & Samuel
Let's see, we've got a horse, a mummy and Madeline. How cute is the Affleck family?!
Adam Levine & Behati Prinsloo
Of the super sexy couple dressed up as Eyes Wide Shut for Adam's big Halloween party.
Tabitha & Marion Broderic
Sarah Jessica Parker's little girls look fierce and sassy trick-or-treating in NYC.
Lindsay Lohan & Floyd Mayweather Jr.
Linds gives us her best Carrie at the Foxwoods Halloween costume in Connecticut.
Honey Boo Boo & Family
Is there anything better than Honey Boo Boo's family dressed up as Kardashians?
Rihanna
RiRi along with her friends dressed up as zombie cholas. The pop star's particular character was named Shy Girl.
Holly Robinson Peete
The actress visits The Wendy Williams Show as Nicki Minaj.
Sarah Hyland
The Modern Family star expresses her love for The Walking Dead in her intimidating costume.
Jonathan Rhys Meyers
The Dracula star looks bloody fantastic at Jonathan Ross' Halloween party in London.
Kelly Ripa & Michael Strahan
As if we weren't already impressed with Kelly's Miley, she and Michael make an awesome Kimye!
Jack Osbourne & Lisa Stelly
Jack and his wife get into the Halloween spirit in West Hollywood. What does the fox say?
Patrick Stewart
Something about Sir Patrick Stewart as a lobster in a tub makes us extra happy!
Mandy Moore & Ryan Adams
Since they are the Adams it only makes sense the couple would dress up as the Addams Family.
Lydia & Doug McLaughlin
Quack! Quack! The Real Housewives of Orange County stars take their Duck Dynasty themed costumes to a whole new level.
Jim & Alexis Bellino
"Big Daddy and his Wolfy...I mean wifey!" the Real Housewives of Orange County star tweeted before attending a Halloween
Nick & Vanessa Lachey
With their 13-month-old son Camden nearby, the spouses of two years dress up as circus ringleaders.
Alyson Hannigan & Alexis Denisof 
