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Katy Perry Hooks Up Fan To Lie Detector Test

Katy Perry surprised a fan during a radio interview earlier this week by using a lie detector test to ask her personal questions.

The 22-year-old super fan named Danielle was asked if she liked Perry’s new hair and if she ever found out what hotel the pop star was staying at.

Perry performed her new single, “Chained To The Rhythm” at Wednesday night’s Brit Awards.