North Korean leader Kim Jong Un professed to be “deeply moved” after South Korean pop stars performed in his country’s capital as part of a significant thaw in inter-Korean relations.

“We should hold culture and art performances frequently,” Kim told the performers, according to South Korean reporters traveling with the artists.

Video and photos from the event showed Kim applauding and waving at the artists, including some K-pop performers.

His wife, Ri Sol Ju, and hundreds of other citizens watched the rare performance, sometimes waving in time with the music. After the two-hour performance, the North Koreans gave a thunderous standing ovation.