What's Up With That Jackson?

He once updated his Instagram and talk about this habit. He loves to show his muscles. When he was in HongKong working on his solo project, he loves to hit the gym with his dad and said he loves to show this part of his body because of his dad. It's genetic.

Well Jackson, your fans must be appreciate that. Keeping a healthy body is good. Bet you can keep it that way until you're 40 or 50. Right Ahgase?