DJ Pauly D, Diddy Light Up the Labor Day Crowd at the Palms Casino Las Vegas

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The stars headed to Sin City this holiday weekend to squeeze the last little bit of partying out of summer, and the Palms Las Vegas Casino was the place to be.

The weekend kicked off with a bang Friday with Jersey Shore star DJ Pauly D spinning at Ditch Friday at the Palms Pool & Bungalows and then later that night at Rain Nightclub.

Only Diddy could host a bash worthy of a holiday weekend in Vegas, and he did just that poolside at the Palms Pool & Bungalows. The huge crown went crazy as Puff hit the mic and sang “Mo Money Mo Problems.” Other celebs joining in to celebrate included Jeff Timmons from 98 Degrees and Chippendales fame, Flo Rida, Christina Milian (who wore an Asymmetrical Bandeau Top by 1Sol Swimwear) and Akon.

Check out all the pics of the hot happening!