PHOTOS: The Situation Celebrates Birthday In Sin City

Jersey Shore's Mike "The Situation" Sorrentino enjoyed a poolside party at the Hard Rock Hotel's Rehab pool in Las Vegas Sunday, just a day before his 28th birthday, and RadarOnline.com has all the pictures for you.

MTV's Italian stallion, as usual, was surrounded by a gaggle of sexy bikini-clad babes, who doted on the chiseled reality TV star prior to his special day.

The Garden State heartthrob was a man of few -- but meaningful words --  as he Tweeted: "Vegas REhab ! SituationNation GTL"

Coincidentally, Sorrentino’s Jersey castmate Pauly D was also in town at the Palms Casino Resort celebrating his 29th birthday Sunday with a pool party.

The second season premieres on MTV Thursday, July 29 at 10/9c.