Not a whole lot to say here other than yikes (and maybe sinewy). The photos were taken by Aaron Williamson, the personal trainer to the stars (you can see some of his work with Zac Efron in "Bad Grandpa" below). Good for you, JK -- you'll bury us all, now pardon me while I grab another handful of peanut butter M&Ms from the fridge.
He's making me look bad. #JKSimmons #AintPlayinNoGames A photo posted by Aaron Williamson (@aaronvwilliamson) on
Saturday morning, 61 years old & making the young generation jealous. This is what dedication looks like. #JKSimmons A photo posted by Aaron Williamson (@aaronvwilliamson) on