Actor Ricky Kim revealed 2AM member Jinwoon's perfectly chiseled abs.

The actor shared the above photo via his personal Twitter on August 8th and wrote, "My dongseng Jinwoon. You worked hard, trying to take care of yourself even while here!"

The way Jinwoon posed in the photo with the sun in his eyes and the Madagascar jungle behind him made him appear all the more beastly and masculine.

Netizens who caught a glimpse of the photo responded with, "So sexy", "I had no idea he was so buff!", and "Those fangirls are probably fainting."

Meanwhile, Jinwoon recently traveled to Madagascar on July 19th to film for the SBS variety program, 'Rules of the Jungle 2'.

Source & Image: OSEN via Nate