[talk] Queen of Tears OST/Boo Seok-soon

Seventeen unit group Boo Seok-soon sang the OST of Queen of Tears. The title is "I keep smiling." I don't usually listen to Boo Seok-soon's songs, but I kept smiling, so I really liked the OST. I listen carefully to the songs that come out while watching the drama, but I never thought that Boo Seok-soon would sing it.