Katy Perry singing Rebecca Black's Friday

Katy Perry Singing Rebecca Blacks Friday at her second Melbourne concert on friday the 29th of April 2011

• 2011-04-29T23:04:34+00:00
• Duration: 01:52

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Entertainment, Friday , Rebecca , Black , Katy , perry, Concert, music, video, eprformance, amaizng, lol, cute, omg, hilarious