Gallery: Music Stars in Halloween Costumes

A preganant Bee-yonce and Mike-ye Wackson attend a party at The Darby in New York, 2011.

Heidi Klum and Seal channel 'Planet of the Apes' at Dream Downtown in New York for Heidi's Annual Hallloween party, 2011.

Fergie announces her 'Universal Royalty' at Heidi Klum's annual Halloween party in New York.

Leona Lewis had an unfortunate homecoming at the 2011 Maroon 5 Halloween Party in Los Angeles.

Adam Levine and Anne V recreate November Rain at the 2011 Maroon 5 Halloween Party in Los Angeles.

Run D-M-Russell Simmons and Andrew Harrell attend Miranda Kirr's 2011 Halloween party in New York.

Natasha Bedingfield at Heidi Klum's annual Halloween party in New York.

Despite being seemingly dead, Heidi Klum enjoys the 2011 bash with Roots' drummer, Questlove.

Bee and Bunny - Bebe Rexha and Pete Wentz of Black Cards pose backstage at Good Units 2011 Halloween bash.

Matthew Morrison performs at his 2nd Annual Halloween Party, 2011.

Adam Levine of Maroon 5 got a little oily for his own Halloween Bash in 2010.

An intimidating trio - Ice-T, Seal and Coco attend the Heidi Klum's 2010 Halloween Party

LaLa Vazquez and Ciara celebrate Ciara's 25th Birthday at Haze in Las Vegas, 2010.

Christine Teigen and John Legend attend Heidi Klum's 2010 Halloween bash at Lavo in New York.

Ashanti attends Heidi Klum's 2010 Halloween Party at Lavo looking like an S&M kitten.

Mariah Carey cuddles up next to Nick Cannon, as a firey couple during a Halloween party at Marquee on Oct. 30, 2008 in NYC.

Cowgirl Gwen Stefani chases her horse, otherwise known as son Kingston Rossdale, as they Trick-or-Trick in LA on Oct. 31 2009.

James Valentine, Adam Levine, andJesse Carmichael turn Maroon 5 into rockstar pirates during their Halloween party on Oct. 31 2007 in L.A.

Christina Aguilera plays "doctor and nurse" with then-fiance Jordan Bratman at their Halloween party at The Hard Rock Hotel and Casino in Las Vegas on Oct. 29, 2005.

Long live the King! Elvis hides from his fans under a mask with actress Joan Bradshaw in Hollywood on Oct. 31. 1957.

P!nk is a sad clown at Heidi Klum and Absolute 100's Halloween party in New York on Oct. 31 2008.

Diddy takes his throne as the king of rap at Heidi klum's 3rd Annual Halloween Bash on Oct. 31 2002.

Yee Haw! John Legend and model Chrissy Teigen get together as Cowboy and Indian for the Pur Jeans Halloween Bash in LA on Oct. 31 2008.

A scholarly looking Lance Bass warms up to superwoman Kim Kardashian during her Halloween bash hosted by PAMA at Stone Rose in LA on Oct. 30, 2008.

Blogger Perez Hilton puts a masculine spin on Lady Gaga for Heidi Klum's 10th Annual Halloween Party on Oct. 31 2009.

Russell Simmons looks like he dressed up as an 80s version of himself next to the devilish looking model Selita Ebanks at Heidi Klum's 10th Annual Halloween Party Presented by MSN and SKYY Vodka in Hollywood on Oct. 31, 2009.

Kelly Osbourne yolked it up when she dressed as an egg with Luke Worrall as a bacon strip at Heidi Klum's 10th Annual Halloween party in Hollywood on Oct. 31 2009.

The Hanson brothers get dressed up to crowd around the larger than life golden medallion Heidi Klum at Heidi Klum's 4th Annual Haunted Halloween Bash in NYC on Oct. 31 2003.

Cher was queen of the Nile in this Cleopatra outfit when she attended Bob Mackie's Halloween Party in Century City, Calif. on Oct. 31, 1998.

A yummy Mariah Carey compliments hubby Nick Cannon, as they pose as an adorable milk-and-cookies duo at their Halloween eve bash on Oct. 30 2008 in New York

Rapper Ice T is a stone cold pimp with his wife Coco at the Roberto Cavalli Vodka and Giuseppe Cipriani Halloween Party in NYC on Oct. 31 2007.

Backstreet Boy Kevin Richardson and his wife Kristin Willits tried to be stealthy with these spooky ninja outfit at the Ian Schrager's Mondrian Hotel Throws a Halloween Party 70's Style party on Oct. 31, 2002.

Jada Pinkett Smith and soon to be superstar daughter Willow Smith get Halloween started at the AIDS Foundation's 15th annual Dream Halloween benefit in Santa Monica, Calif. on Oct. 25 2008.

A terrifying Zombie/"Carrie" version of P!nk gets down with fans at a free Halloween concert on Santa Monica Boulevard in West Hollywood on Oct. 31 2002.

Hilary Duff and Joel Madden went for a "Phantom of the Opera" approach at the Halloween Mansion Party hosted by Haylie Duff on Oct. 31, 2005.

Sting plays the court jester to The Police guitarist Andy Summers' Charlie Chaplin during their Madison Square Garden performance in NYC on Oct. 31, 2007.

Christina Milian shows that ladybugs aren't just cute, but sexy too in this mid-rift showing Halloween costume she wore at the Pur Jeans Halloween Bast at STK in L.A. on Oct. 21, 2008.

Rap knight Diddy enchants princess Mariah Carey, during her annual Halloween Party on Oct. 31 2004 in NYC.

Jake Shears of the Scissor Sisters gets devious as the troublemaker Dr. Frank-N-Furter of the cult classic "The Rocky Horror Picture Show" on Oct. 31 2004.

Seal takes a bite out of Heidi Klum’s apple at her 7th annual Halloween party in LA on Oct. 31 2006.

A goofy looking Pete Wentz goes retro with a new 'fro at the 7th Annual Heidi Klum Halloween Party, Sponsored by M&Ms Dark Chocolate in LA on Oct. 31, 2006.

A teenage Britney Spears showed off her cheesy 80s side with friends at Heidi Klum's Halloween party in Los Angeles in LA on Oct. 31, 2007

Mariah Carey enchants the guests of her Halloween party as a sea bound mermaid on Oct. 31 2003 in London, England.

Dave Navarro went the sexy route in his red and furry lingerie outfit when he attened his Halloween Lingerie and Costume Ball in Hollywood on Oct. 28, 2006.

Aaron Carter shows off his Michael Jackson dance skills with this costume at the Camp Ronald McDonald for Good Times 17th Annual Halloween Carnival at Universal Studios in Universal City, Calif. on Oct. 25, 2009.

On Halloween 2009, Pearl Jam put on matching flower pot hats and yellow plastic suits to rock out in costume as Devo as they played the last show ever at Philadelphia's Spectrum.