Watch: Inside the Kardashian's Epic Pre-Halloween PartyThis Halloween, celebrities pulled out their best tricks to show off their elaborate costumes. From Victoria Justice's spooky bash to Khloe Kardashian's epic pre-Halloween party, stars are going all out for the haunting holiday Friday, Oct. 31. Take, for instance, Kim Kardashian, who dressed up as TikToker Jay Guapo. Meanwhile, daughter North West went as Jay's younger brother Pink Cardigan and Kris Jenner dressed as Jay's mom Chrissy G.