Fans have noticed that Yoseob has been sporting a slimmer and more toned body for B2ST's comeback, but they might not have all noticed what's hiding underneath his shirt!

On the recent episode of KBS' 'Happy Together,' Yoseob revealed that he's taken up boxing and has seen results with his workouts.

Dongwoon further raised the MC's curiosity about Yoseob's body as he shared that Yoseob, who used to once button up his shirt all the way for his cute image, hasn't been wearing as much clothes lately!

So with the MC's request, Yoseob stood up to shed his cute image once and for all as he lifted up his shirt, revealing a well-defined set of abs. He also brought laughs as he mentioned that rather than taking off his shirt starting with his sleeves, he now takes off his shirt starting from his stomach thanks to his nice abs.

The MCs also used this chance to get Kikwang to show off his own set of chocolate abs. He stated, "For a sexier image, I've been tanning," as he showed everyone a peek. However, despite his sexy tanned body, the MCs jokingly pointed out compared to Yoseob, Kikwang seems a little soft, to which Kikwang chuckled and agreed that he isn't as toned as he was in previous years.

You can check out their abs for yourself through the cut below!

SEE ALSO: Fans get emotional after interpreting the lyrics for Rosé's latest single "Number One Girl"