"I knew that!"

The idea behind this Katy Perry-centric skit on 'Jimmy Kimmel Live' sure sounds cute -- our host brought together both the pop star and one of her biggest fans for a round of "Who Knows Katy?," a chirpy game show about Perry trivia -- but the execution of it was mildly terrifying.

First of all, Perry's biggest fan is an adult woman who is wearing a kimono on national television, along with a pair of shoes that Perry actually accuses her of stealing from her closet, all while touting her "Katy Perry wall" in her own home.

It's weird, and even Perry seems to think so, which is probably why she approached the game with some real grit. She'll show you who knows Katy! And she'll probably be kind of wrong about it.

More From KZCD-FM