Rain revealed that he has to workout everyday to prevent his chest from sagging. 

On February 24, Rain, Oh Yeon Seo, Kim Soo Ro, Lee Min Jung, and Kim In Kwon of the upcoming drama, 'Please Come Back, Mister', had an interview on 'One Night of TV Entertainment'. 

SEE ALSO: Rain raises fans' curiosity as he teases upcoming announcement of some 'good news'

Oh Yeon Seo asked Rain, "Oppa how many times do you workout a week?", as they were talking about his 6 pack abs during the interview. Rain answered, "I workout everyday. But the downfall is that if i don't, my chest starts to sag. To prevent this I do 200 push-ups, and 3~400 sit-ups."

Everyone was shocked by Rain's dedication in keeping his perfect body. Well, thank you Rain. Many fans appreciate your hard work!