'Jersey Shore' Cast -- Then and Now!

19 View Slideshow ⟶
The cast of 'Jersey Shore' reunite at the 'Jersey Shore Family Vacation' Premiere Party
Rich Polk/Getty Images for MTV

Get ready for T-shirt time, duck phones and battling in clubs because the Jersey Shore cast is back! Have they finally grown up or just grown messier? Let's take a look at the cast -- then and now.