Katy Perry's priceless reaction after American Idol contestant covers ex John Mayer's song: 'I'm triggered' - 9Honey Celebrity

'Maybe you should Wikipedia me'

There's nothing more gut-wrenching than stumbling upon a little reminder of a previous relationship, from old photos to clothing. But Katy Perry got a kick in the guts on the latest episode of Ameri… [+2113 chars]

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