• Singapore actress Rebecca Lim shares a photograph with South Korean star Song Joong Ki at the 2016 Seoul International Drama Awards.

Singapore actress Rebecca Lim shares a photograph with South Korean star Song Joong Ki at the 2016 Seoul International Drama Awards. (Photo : Instagram/limrebecca)

The world of K-Drama fans stopped when Song Joong Ki appeared shirtless in one workout scene in "Descendants of the Sun." The actor surprised many as he exposed his more muscular and toned physique.

As Captain Yoo Shi Jin in "Descendants of the Sun," Song Joong Ki is expected to look fit enough for his role as an active duty soldier. In the drama series, he works out shirtless and goes on daily jogs shirtless. On a weekly basis, he gifts his fans with a clear view of his toned body. To make it happen, the 31-year-old actor said that he worked out very hard for the drama.

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"Rather than doing it to be outwardly attractive, I thought that I should build up my body to lend to the melodrama with Song Hye Gyo, since my character is a soldier who likes to work out," Song Joong Ki said about his decision to pack on more muscles for his role, Soompi reported.

In another interview, Song Joong Ki revealed that Kim Jong Kook helped him prepare for his role by teaching him the exercises necessary for his workout routine. According to Soompi, Song Joong Ki got a lot of help from Kim Jong Kook when he was preparing for his role in "Descendants of the Sun."

Song Joong Ki, together with Lee Kwang Soo, also revealed that he has a family-like relationship with Kim Jong Kook. It was revealed that Kim only drinks once a year, and when he does it is often to listen to the problems and worries of Song and Lee.

Months after "Descendants of the Sun" wrapped up, Song Joong Ki still maintains his beefed up body. The actor is set to star in the movie "Battleship Island" and the drama "Man to Man" next year. Thus, he's still working out to maintain his figure.

All the hard work is paying off for the baby-faced actor as fans continue to notice and praise his buff body and his perseverance in working out. Indeed, Song Joong Ki is one great actor who is truly dedicated to his craft.