Brace yourself. Topless Koo Jun Hoe is back!

On January 10, the vocalist of iKON shared photos from the gym on his personal Instagram. Going shirtless, Koo Jun Hoe showed off his muscular figure with a mirror selfie. He also displayed cute charms in another selfie with a puppy. Koo Jun Hoe captioned the post with, "Cool guys hug puppies after working out."

Meanwhile, iKON recently released "I'm OK" from their 2nd repackage album 'New Kids.'