It looks like Boom has been working out quite a bit during his time in the military!
On September 5th, the entertainer tweeted a set of photos saying, “I will show you everything tonight! If I can’t show you everything… I’ll show you more next week~ ^^* Boom-heart comeback show!”, referring to his recent comeback on SBS‘s ‘Strong Heart‘.
Fans were at a loss for words after seeing Boom’s well-toned and muscular body, but they still managed to comment in awe, “I can’t stop staring...”, “wow…“, and “Your two years in the military definitely paid off“.