Ashley Greene from the “Twilight” movie series arrives at Veuve Clicquot’s Yelloween at the Tao Nightclub at the Venetian Resort Hotel Casino October 31, 2009 in Las Vegas, Nevada. (Photo by Ethan Miller/Getty Images)
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Halloween 2009 In Pictures
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Halloween 2009 In Pictures
Halloween Is Celebrated At The White House (Photo by Kristoffer Tripplaar-Pool/Getty Images)
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Halloween 2009 In Pictures
Katerina Graham arrives at the Heidi Klum’s 10th Annual Halloween Party on October 31, 2009 in Los Angeles, California. (Photo by Valerie Macon/Getty Images)
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Halloween 2009 In Pictures
Jessica Lowndres arrives at the Heidi Klum’s 10th Annual Halloween Party on October 31, 2009 in Los Angeles, California. (Photo by Valerie Macon/Getty Images)
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Halloween 2009 In Pictures
Coco attends Mariah Carey’s Halloween celebration at M2 Ultra Lounge on October 31, 2009 in New York City. (Photo by Mike Coppola/Getty Images)
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Halloween 2009 In Pictures
Rapper Ice-T and Coco attends a Halloween celebration at M2 Ultra Lounge on October 31, 2009 in New York City. (Photo by Mike Coppola/Getty Images)
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Halloween 2009 In Pictures
Singer Mariah Carey attends a Halloween celebration at M2 Ultra Lounge on October 31, 2009 in New York City. (Photo by Mike Coppola/Getty Images)
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Halloween 2009 In Pictures
Ice-T and Coco attends a Mariah Carey’s Halloween celebration at M2 Ultra Lounge on October 31, 2009 in New York City. (Photo by Mike Coppola/Getty Images)
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Halloween 2009 In Pictures
Mariah Carey Hosts A Halloween Celebration At M2 Ultra Lounge. (Photo by Mike Coppola/Getty Images)
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Halloween 2009 In Pictures
Ice-T attends Mariah Carey’s Halloween celebration at M2 Ultra Lounge on October 31, 2009 in New York City. (Photo by Mike Coppola/Getty Images)
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Halloween 2009 In Pictures
Rick Fox and actress Eliza Dushku arrive at the Heidi Klum’s 10th Annual Halloween Party on October 31, 2009 in Los Angeles, California. (Photo by Valerie Macon/Getty Images)
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Halloween 2009 In Pictures
Nick Cannon and singer Mariah Carey attends their Halloween celebration at M2 Ultra Lounge on October 31, 2009 in New York City. (Photo by Mike Coppola/Getty Images)
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Halloween 2009 In Pictures
Cisco Adler & Shwayze arrive at the Heidi Klum’s 10th Annual Halloween Party on October 31, 2009 in Los Angeles, California. (Photo by Valerie Macon/Getty Images)
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Halloween 2009 In Pictures
Perez Hilton channels Lady Gaga as he arrives at the Heidi Klum’s 10th Annual Halloween Party on October 31, 2009 in Los Angeles, California. (Photo by Valerie Macon/Getty Images)
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Halloween 2009 In Pictures
Singer Celeta arrives at the Heidi Klum’s 10th Annual Halloween Party on October 31, 2009 in Los Angeles, California. (Photo by Valerie Macon/Getty Images)
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Halloween 2009 In Pictures
Singer Seal arrives at the Heidi Klum’s 10th Annual Halloween Party on October 31, 2009 in Los Angeles, California. (Photo by Valerie Macon/Getty Images)
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Halloween 2009 In Pictures
Heidi Klum arrives at her 10th Annual Halloween Party on October 31, 2009 in Los Angeles, California. (Photo by Valerie Macon/Getty Images)
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Halloween 2009 In Pictures
Nick Cannon and singer Mariah Carey attends a Halloween celebration at M2 Ultra Lounge on October 31, 2009 in New York City. (Photo by Mike Coppola/Getty Images)
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Halloween 2009 In Pictures
Mariah Carey’s Halloween celebration at M2 Ultra Lounge on October 31, 2009 in New York City. (Photo by Mike Coppola/Getty Images)
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Halloween 2009 In Pictures
Sam Trammell and Rutina Wesley from the television series “True Blood” arrive at Veuve Clicquot’s Yelloween at the Tao Nightclub at the Venetian Resort Hotel Casino October 31, 2009 in Las Vegas, Nevada. (Photo by Ethan Miller/Getty Images)
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Halloween 2009 In Pictures
Twilight And True Blood Stars Host At Veuve Clicquot’s Yelloween At Tao. Actor Kellan Lutz and actress Ashley Greene from the “Twilight” movie series arrive at Veuve Clicquot’s Yelloween at the Tao Nightclub at the Venetian Resort Hotel Casino October 31, 2009 in Las Vegas, Nevada. (Photo by Ethan Miller/Getty Images)
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Halloween 2009 In Pictures
Rutina Wesley from the television series “True Blood” arrives at Veuve Clicquot’s Yelloween at the Tao Nightclub at the Venetian Resort Hotel Casino October 31, 2009 in Las Vegas, Nevada. (Photo by Ethan Miller/Getty Images)
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Halloween 2009 In Pictures
Blake Lively attends Halloween 2033: SVEDKA Vodka Adult Playground Series @ 1OAK with Scott Sartiano and Richie Akiva on October 31, 2009 in New York City. (Photo by Dimitrios Kambouris/Getty Images for Svedka Vodka)