Mary-Kate Olsen and Ashley Olsen Halloween Costumes Pictures

Mary-Kate and Ashley Scare Up Some Stylish Halloween Costumes For StyleMint

Mary-Kate and Ashley Olsen show off their sense of humor — and fashion — in a newly released, Halloween-themed video for StyleMint. The sisters created a fun video quiz for shoppers that features the pair all dressed up in a range of costumes. Mary-Kate and Ashley first appear as Stan and Cartman from South Park. They also try on sexy, leather-clad cat costumes and don Darth Vader and Stormtrooper helmets. The latter getups were complete with lightsabers fashioned from the Olsens' must-have accessory, a to-go coffee cup. The quiz reveals a special discount code for the sisters' t-shirt site and gives them a chance to cut loose and show a sillier side of themselves. The Olsens launched the video last night as they headed back to the States following a stint at Paris Fashion Week. Mary-Kate and Ashley attended Kanye West's show during their stay in the City of Lights and also got down to business, presenting their handbag collection for The Row at Montaigne Market.

Mary-Kate Olsen and Ashley Olsen sported South Park masks.

Mary-Kate Olsen and Ashley Olsen got playful in Cartman and Stan masks.

Ashley Olsen cracked the whip.

Mary-Kate Olsen and Ashley Olsen donned a series of Halloween headgear.

Mary-Kate Olsen and Ashley Olsen did the hitchhiker.

To see more photos of Mary-Kate and Ashlen in their costumes, keep reading.

Mary-Kate Olsen and Ashley Olsen sported South Park masks.

Mary-Kate Olsen and Ashley Olsen got playful in Cartman and Stan masks.

Ashley Olsen cracked the whip.

Mary-Kate Olsen and Ashley Olsen donned a series of Halloween headgear.

Mary-Kate Olsen and Ashley Olsen did the hitchhiker.

Mary-Kate Olsen and Ashley Olsen got playful during the shoot.

Mary-Kate Olsen and Ashley Olsen sexed up the classic cat costume.

Ashley Olsen and Mary-Kate Olsen put their own spin on Darth Vader.

Star Wars was the inspiration behind some of Mary-Kate Olsen and Ashley Olsen's costumes.

Mary-Kate Olsen and Ashley Olsen had lightsaber coffee cups for one costume.
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