Katy Perry kicked it with Facebook creator/founder Mark Zuckerberg, Nicki Minaj donned a gumbi wig, Justin Bieber played dress up, Christina Aguilera made kissy faces, Jennifer Lopez got her behind "Off The Floor" for a picture, Prince and Jimmy Fallon rocked out and Keri Hilson serenaded Quentin Tarantino. It all happened this week and we've got the pics to prove it.

SEE THE PHOTOS OF THE WEEK | POTW MAIN PAGE

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