The new dad made the announcement on Instagram on Tuesday (Oct 24), said websites.
He posted a photo of booties, with a message written in the baby's voice: "Thank you. I will grow into a child who helps the world." Preparations had been carried out in secret, with guests informed of the venue and time one day before.
Korean pop singer Rain will be tying the knot with actress Kim Tae-Hee after four years of dating.
Rain made the announcement on his Instagram account on Tuesday.
The pop star, according to the ministry, has acknowledged that he broke the rules and said he will practice “self-restraint.” (MORE: Korean Pop Star Rain Wins TIME 100 Poll — Again) All able-bodied South Korean men are required to serve in the armed forces for two to three years.
Rain serves as a corporal in a unit that produces TV and radio broadcasts to promote the military.
He joined the army in October 2011 and is expected to be discharged on July 10 this year, barring any punishment that might extend his service time.
"She's the greatest gift of all." The two have been dating since 2012. A singer who has released more than seven studio albums to date, Rain is best known for his acting stint in the popular Korean drama series "Full House," which aired in the Philippines during the 2000s.
"He breached regulations against having private meetings while on official duty," the ministry spokesman said.