Hollywood started getting in the Halloween spirit last weekend, with many stars donning early costumes at pre-holiday parties.
Among those dressing up were Adam Lambert as a genie, Nicole Richie as the Danny DeVito half of Twins and Fergie and Josh Duhamel, who sported two different sets of costumes. Paris Hilton and Hugh Hefner's wife Crystal also offered up variations of Miley Cyrus' VMA performance look.
The celebration continued during the week with Cyrus herself, Neil Patrick Harris, Patrick Stewart, Britney Spears, Nicki Minaj and Beyonce sharing their costumes online.
On Halloween night, Heidi Klum also continued her tradition of impressive All Hallows' Eve outfits, transforming herself into a 95-year-old woman.
Take a look at how the stars celebrated Halloween:
— Hugh Hefner (@hughhefner) October 27, 2013
Out for holloween ran into bring graziia. He's dmc. And I'm guess who pic.twitter.com/2byeDjAs54
— Russell Simmons (@UncleRUSH) October 27, 2013
Great night last night with @SwitchBHenjoying some pre Halloween festivities! pic.twitter.com/TJnRaKC0tt
— Lea Michele (@msleamichele) October 27, 2013
— Neil Patrick Harris (@ActuallyNPH) October 31, 2013
— Bethenny Frankel (@Bethenny) October 31, 2013
Happy Halloween. pic.twitter.com/ugLBMzAeNF
— Patrick Stewart (@SirPatStew) October 31, 2013
— hayden panettiere (@haydenpanettier) November 1, 2013
— Katie Couric (@katiecouric) November 1, 2013