2PM's�Chansung shared a half naked picture of himself via Twitter.

He uploaded the above picture on August 21st and wrote, "Goodnight everyone ^^. Oh and this is not a photo for 'Men's Health'... anyways I'm going to bed~^^"

In the picture, Chansung showed off his sculpted chocolate abs and showed off the true meaning of what 'beastly' idol means.

Fans that saw this picture left comments saying, "He is so manly," "I think he has the best body in 2PM," and "I'm so jealous."

On another note, 2PM and all the singers from�JYP Entertainment recently held their 'JYP Nation' concert(s) in Japan.

Source & Image: Chansung's Twitter