Zac has always been a pretty fit guy. He also isn’t someone that is afraid to take off his shirt and show off his work at the gym. Earlier last year, the paparazzi got his in various states of undress on a hotel balcony (read about that here on TMSB). Anyway, this pic was published his week and shows a beefed up Zac grilling (MEAT JOKES GALORE). This is for the movie ‘Neighbors’, out next spring. Maybe some more shots will be published?