By Tim Saunders on
Katy Perry rocked the Hammersmith Ballroom in New York on Tuesday, July 28, as part of the (RED)Nights concert series.
(RED)NIGHTS consists of 26 incredible shows featuring Fall Out Boy, The Veronicas, O.A.R., Katy Perry, Gomez and many more in venues across the US. The shows benefit Bono's AIDS initiative Product RED, and kicked off in June.
To find out when the next shows are or to watch footage from Tuesday’s concert, click here#.
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