MTV's 'Jersey Shore' gave Jenni Farley stardom, almost overnight .. except with Farley .. there is no "overnight" because she is usually partying "all night". We know Jenni as "JWoww", and you can take that literally because the 5' 7 25 yr old is now 20 lbs lighter, 2 dress sizes smaller and looking more "wow" than ever.

JWoww recently sat down with Life & Style and revealed that her hit reality TV lifestyle wasn't conducive to weight loss so she had to change things up a bit. This season you will see JWoww hitting the gym, cutting back on the partying and her new drink of choice,"vodka-seltzer, no cranberry, nothing fruity." Since filming wrapped on season three she has actually cut drinking altogether.

A couple other things have played a part. It never hurts to have a little motivation, especially when it come in the form of bodybuilder/boyfriend/personal trainer, Roger Matthews, JWowws new man, who has been training her about half the time.

For more on JWowws new man, new bod & her total transformation scoop up a copy of the new Life & Style Weekly, on newsstands now!