Katy Perry Exposed A Superfan During A Very Awkward On-Air Lie Detector Test

    Luckily for the fan, it was one big prank.

    Katy Perry stopped by Capital FM to promote her new wig and give a ~lie detector test~ to a superfan:

    View this video on YouTube

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    Things were off to good start between Katy and the superfan...

    👍

    ...until Katy asked if she liked her new hairstyle:

    LIARRRR.

    THEN, Katy asked if she didn't like any outfit that she's previously worn...

    ...AND THE LIE DETECTOR TEST DETERMINED THAT WAS ALSO A LIE!!!!

    Luckily for the poor fan, the whole thing was a prank and the lie-detector expert was faking all of her responses.

    The face of being fake-exposed: