In mbn entertainment 'Mystery duet' broadcasted on the afternoon of the 8th, Kim Ho-joong was revealed to see tears when he saw Lee Eung-kwang, who was released as Mystery singer.
Kim Ho-joong appeared as the first open singer on the day; Kim Ho-joong appeared nervous as he put his hand on his chest on stage. 20 days ago Kim Ho-joong was expecting Song Gain and Koo Yoon-hyung to the question of "Who do you expect Mystery Singer?"
Kim Ho-joong said, "The word 'Duets' shows great synergy." Kim Ho-joong sang the Duets song 'The Song of the Wind' with great talent. Kim Ho-joong looked curious about who he was listening to Mystery Singer's voice, and as soon as he saw Lee Eung-kwang, he showed tears. Lee Eung-kwang welcomed Kim Ho-joong with a warm smile, who struggled to hold down the North Korean emotions and continued the Duets.
Since then, Kim Ho-joong and Lee Eung-kwang have been singing together and singing deeply. Kim Ho-joong said to Lee Eung-kwang, "I wanted to see my brother" while Jeonju was flowing.