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Katy Perry and Greg James on stage during the Radio 1 Teen Awards, at the Hammersmith Apollo, London Stock Photo - Alamy
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Stream Katy Leaks | Listen to Katy Perry - BBC Radio 1's Big Weekend Glasgow 2014 [Live Acapellas] playlist online for free on SoundCloud
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Stream KatyPerryFrance | Listen to Katy Perry - BBC Radio 1st Big Weekend - Live Glasgow 2014 playlist online for free on SoundCloud
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Katy Perry flashes her underwear whilst performing at the Radio 1 Big Weekender in Hull | RealTime Images
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File:Katy Perry At The I'm With Her Concert for Hillary Clinton at Radio City Music Hall (25105966549).jpg - Wikimedia Commons
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