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Katy Perry leads prelude to Grammy concert tonight
Singer Katy Perry and others perform during the Grammy Nominations Concert in Los Angeles on Tuesday, Nov. 30, 2010.
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Singer Katy Perry performs during the Grammy Nominations Concert in Los Angeles on Tuesday, Nov. 30, 2010. Joining Katy Perry on Dec. 1 in the lineup for the "Grammy Nominations Concert Live" show will be such Grammy newbies as Justin Bieber, B.o.B and Bruno Mars.
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