J.K. Simmons: INSANELY JACKED ... For New 'Justice League' Flick
J.K. Simmons INSANELY JACKED ... For New 'Justice League' Flick
Well, now we know what the J in J.K. Simmons stands for -- JACKED.
Check out the 61-year-old beasting out in an L.A. gym -- gearing up for his role in the upcoming 'Justice League' movie.
No, he's not playing Bane ... or Batman ... he's an insanely muscle-bound Commissioner Gordon!
Simmons has been training with retired Marine Aaron Williamson -- who reportedly got Zac Efron into shape ... and who's been known to push weights with The Rock.
![](https://cdn.statically.io/img/imagez.tmz.com/image/30/16by9/2016/06/08/303a521a3ffe55528ba7336d80052cec_md.jpg)