S7, E12: Actors Heo Sung Tae and Lee Sang Yi, who star alongside host Park Bo-gum in the upcoming drama "Good Boy," open the show with lively chemistry and unexpected musical moments. Singer-songwriter Lee Mu Jin shares candid reflections along with soulful performances. Comedian Jo Hye Lyun and indie duo Peppertones team up for a unique collaboration, while rising artist Deulre Jang makes a lovely and memorable first appearance on TV.