Dunno, back in my day you wouldn't catch a 16-year-old working out in a gym (we were too busy sitting on walls) - still trying to figure out whether that's a good thing or a bad thing. That aside, the internet is going doolally this morning for this photo Brooklyn Beckham uploaded to his Instagram titled "working out."
 


By the looks of things it won't be long before he's as buff as his dad, David. They've always had a healthy level of father/son rivalry...