During a show in Las Vegas, Katy Perry was seen touching the side of her face in a bizarre moment when her eye would not open. RELATED: Why Katy Perry is a crazy Super Bowl halftime choice! » Subscribe to USA TODAY: » Watch more on this and other topics from USA TODAY: » USA TODAY delivers current local and national news, sports, entertainment, finance, technology, and more through award-winning journalism, photos, videos and VR. #KatyPerry #Concert #Glitch
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