Jersey Shore Cast Fist-Pump to 15-Year Anniversary

There was a pretty epic "situation" going down -- the cast of "Jersey Shore" reunited to celebrate the 15th anniversary of the iconic MTV series!

Deena Nicole Cortese, Paul "Pauly D" Delvecchio, Jenni "JWOWW" Farley, Vinny Guadagnino, Ronnie Ortiz-Magro, Nicole "Snooki" Polizzi, Mike "The Situation" Sorrentino, and Sammi "Sweetheart" Giancola were all living it up at the 15th anniversary bash in Seaside Heights, New Jersey, on Tuesday.

The cast didn’t miss a beat, rocking their finest luxe evening attire -- a far cry from the skimpy party gear they used to sport while tearing up the boardwalk during their heyday!

Fashion aside, the crew was still all about their classic fist-pumping fun, but they've clearly swapped the chaos for a bit more class ... because things look a lot more chill.

Of course, there was plenty to celebrate and reflect on -- "Jersey Shore" changed the reality TV game the moment it hit MTV, becoming an instant smash hit and the highest-rated series in network history. And let’s be real, a lot of its lingo is still going strong today.