Katy Perry Performs at the Grammy Nominations Concert 2013

Published:10:28 pm EDT, December 6, 2013| Updated:11:00 pm EDT, December 6, 2013|

Katy Perry was added to the roster for tonight's Grammy Nominations Concert, performing from Toronto, Canada. Dressed in an amazingly sequined and metallic beaded outfit, Katy Perry delivered an acoustic performance of her song "Roar."

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