Kim Kardashian attends the TIAH 4th Annual Fundraiser at Private Residence on August 27, 2022 in Los Angeles, California. (Photo by Stefanie Keenan/Getty Images for This Is About Humanity)

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Kim Kardashian‘s devotion to Halloween continues to go unmatched. This year, the skincare mogul decked out her house in spooky decor, then came up with an over-the-top costume which she mistakenly wore to an event that wasn’t a costume party.

The mogul turned up to Tracee Ellis Ross’ birthday in a full head-to-toe Mystique costume.

“That time I showed up to a birthday dinner in full costume when it wasn’t a costume party!” Kardashian captioned a selfie of her and the guest of honor. “Happy Birthday to the most beautiful kind soul @traceeellisross,” she added.

Credit: Instagram @kimkardashian

The reality star wore a cobalt blue scaled second-skin latex bodysuit and stilettos, with matching face paint, slicked back crimson hair and gleaming green eyes to embody the X-Men character portrayed onscreen by Rebecca Romijn and Jennifer Lawrence.

Kardashian was joined by her friends Olivia Pierson, who dressed up as Marvel’s Magik in a black corseted bodysuit, white hair and a silver-armored arm, and Natalie Halcro dressed as the comic book character Selene, with a blue wig, a lace-up corset, knee-high boots, and a blue cape.

While out and about, the SKIMS founder bumped into P. Diddy, who was dressed as the beloved Batman villain, the Joker.

Last week ahead of spooky season, Kardashian showed off the incredible decorations outside the front of her Los Angeles home and inside the lobby ahead of the holiday.

“Perfect Halloween 2022”, Kardashian captioned a post on Instagram. The video starts at the walkway of her home where she explained she wanted “a skeleton theme” and had trees made up of fake bones. As you walk down the pathway there are hooded statues performing a ritual around a bonfire. Kardashian said her “favorite part” was hands sticking out from the ground, which resembled zombies, that were molds from her family, friends and even the chef.