Girl group SISTAR's Hyorin and popera singer Kai sang the national anthem together at the National Korean Foundation Celebration.

On October 3rd, the two sang the national anthem at the Sejong Center Grand Theater in Seoul for 'The Foundation Day Anniversary Celebration.'

Both singers went on stage dressed in black formal attire. Hyorin and Kai sang verses 1 through 4 of the national anthem, accompanied by the History Children's Choir, and moved the audience. Not only that, they also sang the OST "Butterfly" from the movie "Take Off" together.

About 3,000 people attended this event, including government and diplomatic corps, as well as key figures from various community representatives, teachers, students, parents, and more. After Hyorin and Kai sang the national anthem, there were other celebratory concert performances, such as the national flower dance.