Is this real life or is this Westworld? The scariest film you’ll see this Halloween season is a clip of Katy Perry’s eyelid during a show at her Las Vegas residency. 

A video of the “I Kissed a Girl” singer has gone viral thanks to Perry’s seemingly involuntary twitch. In the clip, Perry, wearing a dress embellished with beer cans, has just finished a song and is enjoying the applause. Out of nowhere, one of her eyelids closes, in what appears to be an unchoreographed movement. Both of her eyelids start twitching, and Perry touches her temple in an attempt to make it stop. The robotic movement is definitely giving Westworld host. 

But Perry is a pro, and doesn’t allow her eyelids to stop the show. Instead, she continues to enjoy the applause while her eyelids open and close and twitch uncontrollably. At the end of the clip, she starts walking on stage and says, “Make even more noise for my band!”

See the clip here, shared by @DaisyDoveCat1 on Twitter:

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Perry’s fans—known as Katy Kats—are already sharing their hilarious theories, including one that proposes this is all because of slime. 

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