Katy Perry Flashes Thong — and a Butterfly Back Tattoo! — at Billboard(01)

Katy Perry Flashes Thong — and a Butterfly Back Tattoo! — at Billboard(01)

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Katy Perry Katy Perry Flashes Thong — and a Butterfly Back Tattoo! — at Billboard Katy Perry goes 'nude' live at Glastonbury and sends fans into meltdown