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Selena Gomez gets the "fiesta" going with Katy Perry, plus a lot more celebs out and about… right here!
Crédito: Grosby Group
Actualizado: 28 de noviembre, 2012 - 1:57 PM EDT
And while ex-girlfriend Selena Gomez was out partying with Katy Perry, Justin Bieber was out shopping for the right outfit (to win her back, perhaps?).