The show, you see, has the totally original concept of disguising celebrities and putting them amongst fans so they can see if they have ~tru fans~ or just "hungry tigers" (thank you, Paris Hilton, for that useful phrase).
Makeup artists attached prosthetics to Kardashian's face, gave her a wacky wig and a pair of glasses, slapped some non-body con clothing on her, and called it a disguise. Always eager to help, Kardashian also puts on some weird accent. Fans: Fooled! She even fools her very own sister Kourtney and her beau Scott Disick! The miracle of makeup, people.
(And don't worry guys -- the fans totally passed the test. Phew!)
Here's my biggest question, though: How did they cover up Kardashian's derriere? Not to be that person, but Kardashian has one of the most best-known bums in the biz -- surely her diehard fans would have recognized her that way. Did they have her just walk along walls? Did they tape it down? I have questions, Oxygen. Questions that must be answered.
You can see more of Kardashian's mind-blowing transformation over at Oxygen.
*Depending on how easily your mind is blown.