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USA TODAY - Jersey Shore star Nicole "Snooki" Polizzi is shrinking.

She has been slimming down since the birth of baby boy Lorenzo last August, but she looked really tiny at Thursday's WWE Superstars For Sandy Relief Event in New York. Snooki shared photos from the event on Twitter and Instagram.e

The 4-foot-9 MTV star dropped 42 pounds since Lorenzo's arrival. Last month, she showed off her 102-pound shape on the cover of Us Weekly.

On Monday's Dr. Oz show, Snooki talked about her health and weight loss. She explained to fans, "It's not a miracle pill you take and it's not doing anything crazy! You just go to the gym and work out. It's dedication and it's motivation!! I've been going to the gym seven days a week basically since Halloween and I've worked very hard to lose all the weight! I wanted to be a fit mom and be good for Lorenzo and for him to be healthy."

The Thursday night party was hosted by Sean "Diddy" Combs, and the guest list included Mayor Michael Bloomberg, along with John Cena, Mick Foley, Dwayne Johnson and other WWE celebs. It marked part of WrestleMania week, with proceeds benefitting The Mayor's Fund to Advance New York City and the Hurricane Sandy New Jersey Relief Fund, both of which continue to provide assistance in the wake of the storm.

The Rock and Cena will face off in the ring at Wrestlemania 29 on Sunday at MetLife Stadium in East Rutherford, N.J.