Jay-Z, on the other hand, decided to go in a different direction by taking the stage during a concert in Toronto dressed as Jason.


La Toya Jackson served milkshakes on Halloween at Millions of Milkshakes in West Hollywood.


Pussycat Doll Melody Thornton as a shooting star!


Jordin Sparks was a killer Dorothy from “The Wizard of Oz,” while her boyfriend Steph Jones got dolled up as a girl with a bad weave.


Aubrey O’Day came to the rescue as Catwoman with her dogs Batman and Robin at The Bank in Las Vegas.


Selita Ebanks came as the devil and Russell Simmons dressed as his brother, Rev Run of Run-D.M.C., at Heidi Klum’s 10th Annual Halloween Party.


Ice-T & Coco attended Nick & Mariah's Halloween bash at M2 Ultra Lounge in New York City on Saturday


Imperfect angel Mariah Carey and her husband Nick Cannon were a match made in heaven at their annual Halloween bash at M2 Ultra Lounge in New York City on Saturday (Oct. 31)


HOWUDOIN? Wendy is working 9 to 5 in her Dolly inspired costume..


Lamar Odom and Khloe Kardashian dress as Batman and Catwoman for a Halloween night at Club XIV in West Hollywood.


Kimora and her man was a sexy nurse and doctor!!!


HEIDI KLUM AND SINGER SEAL ARRIVE AT THE HEIDI KLUM’S 10TH ANNUAL HALLOWEEN PARTY IN L.A.


LANCE GROSS AND EVA MARCILLE PIGFORD ATTEND EVA MARCILLE PIGFORD’S 25TH BIRTHDAY CELEBRATION AT EZ STUDIOS IN NYC


Check out Beyonce as Spiderwoman. According to Beyonce world, she and her whole tour crew dressed up to celebrate the day. The crew will be HEADING TO BERLIN this week because she is scheduled to perform at MTV’S European Music Awards.


Actress Monique Coleman channeled her inner Sasha Fierce and decided to roll out as Bey Bey from the Single Ladies video.


Dressed as Frankenstein and his bride, Nick Lachey and Vanessa Minnillo get into the spirit of the season by hosting a haunted mansion-themed Halloween party Friday in Bel-Air thrown by L.A.'s The Party Goddess! Marley Majcher.


Talk about a skeleton crew! Christina Aguilera and son Max, 21 months, play skull and bones dress-up to attend a Halloween party in Los Angeles on Saturday.


No, we're not in Kansas anymore! Paris Hilton puts a sexy spin on Dorothy from the Wizard of Oz as she gets set to make an appearance on Jimmy Kimmel Live! Friday in Los Angeles.


It's The Hills Plus 8! The reality twosome dressed up as embattled reality couple Jon and Kate Gosselin – complete with baby dolls! – in L.A.


Keeping up with their tradition of elaborate Halloween costumes, the Today show cast used the force, dressing up as characters from Star Wars. (That's Ann Curry as Darth Vader!)


ATL “Housewives” Kim, Lisa and Kandi hit up their Halloween party in ATL over the weekend.


Singer/actor Tyrese went as a “Drunk Astronaut” in this photo he posted on his twitter.


See who looks dino-mite! Kingston Rossdale, 3, shows off his prehistoric costume while being pushed by mom Gwen Stefani, who dressed as Toy Story cowgirl Jessie, for a trick-or-treating outing, which also included dad Gavin Rossdale and little brother Zuma, 14 months, in Los Angeles on Saturday.


For the Halloween-themed episode of The Tyra Banks Show, the model donned a wig and Kim Kardashian's signature pouty pose to channel the reality star.


Now that's one way to be a cover girl! The talk-show host – who will appear with Oprah Winfrey on the cover of O Magazine in two weeks – gave her audience a preview of what that photo might look like.


Let them eat ... Halloween candy? Stiles got into the Halloween spirit, dressing up as Marie Antoinette during a visit to It's On with Alexa Chung. The host, meanwhile, went more traditional, going with a pumpkin costume.


Rihanna, pictured with Ice-T’s wife Coco, looked grrreat in a sexy Tony the Tiger (or Tigger) costume at Mariah Carey and Nick Cannon’s Halloween party in New York City on Saturday (Oct. 31).


In a white suite and pale face makeup, the actor went as, well, a pale Mickey Rourke for a Halloween party at Club Voyeur in West Hollywood.