Katy Perry performs in Washington as part of Witness: The Tour in support of fifth album

Katy Perry wore a red sequinned outfit and the stage props included outlandish TV sets and lights

Singer-songwriter Katy Perry performs on stage at the Capitol One Arena on Monday, 25 September 2017, in Washington. Image from AP

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Katy Perry, top-center, performs at the Capitol One Arena. Image from AP

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Katy Perry performs on stage. Image from AP

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Katy Perry performs on stage in Washington. Image from AP

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Katy Perry wore a red, hooded outfit for her performance in Washington. Images via AP

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Katy Perry performs on stage at the Capitol One Arena. Image from AP