A large banner featuring the image of singers Tae Jin-ah and his son Eru was hung up outside the Indonesian Embassy in Yeouido, Seoul on Monday.
The embassy made the banner with a message "Towards Enduring Friendship Indonesia-Korea" in recognition of their contribution to increased cultural exchanges between the two countries.
It will stay in place for a year. Eru has enjoyed huge popularity in Indonesia since he debuted there in 2012.
Tae has been busy supporting his son's activities there as both his father and the CEO of their entertainment agency.