@bettemidler recreated her Winifred Sanderson character from Hocus Pocus.

@alessandraambrosio dressed as Jessica Rabbit.

@victoriajustice as Beetlejuice

Olympic swimmer @ryanlochte as the Mad Hatter and companion as Alice in Wonderland

@themarcjacobs

Little Mix star @perrieeele as Poison Ivy.

@parishilton dressed as Paris in Wonderland.

@ninadobrev horsing around with a friend.

@nicolerichie and friends dressed up as Siegfried and Roy (and lion!)

@mariahcarey dressed as a devil for her annual Halloween party.

Meanwhile, sister @kyliejenner hosted her first Dead Dinner party, alongside her skeleton boyf Tyga.

@kyliejenner dressed as Christina Aguilera from her 2002 ‘Dirrty’ music video.

@kendalljenner dressed as a goth and did margarita shots at sister Kylie’s Dead Dinner party.

@katyperry as a very convincing Hillary Clinton.

@katehudson dressed in Marc Jacobs for Katy Perry’s 50s sock hop birthday party.

@jennaldewan as a psychedelic unicorn.

letthelordbewithyou My other big headed alien

@emmaroberts went with intricate skeleton facepaint makeup.

Demi Lovato and @nickjonas went as Dorothy and the scarecrow from The Wizard of Oz.

@kourtneykardash posted this pic of her wearing a skull mask…

Room actor @jacobtremblay dressed as Marty McFly from Back to the Future.

@therealsarahhyland dressed as the Fairy Queen of the Swamp.

haileybaldwin #rumneygirl GYPSYLYFE

kourtneykardash Till death do us part.

chrissyteigen have you ever seen a more “why me?” face

naomiwatts Happy Halloween!!

parishilton Little Red Riding Hood

kirstendunst My Elle princess@ellefanning