POTW: Selena Gomez, Justin Bieber, Britney Spears, LMFAO

POTW: Selena Gomez, Justin Bieber, Britney Spears, LMFAO

Selena Gomez spends quality time with the fam, Justin Bieber puts on the boxing gloves, Britney Spears hops on Jersey Shore's Pauly D and LMFAO "party rocked" all night. It all happened this week, and we've got the pics to prove it.

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