JAEJUNG & Jun Su (Xia), singing on "Premium Music 2022" broadcast last night is trending. Posted the behind scenes on Instagram. Jun Su (Xia) stated "When I'm always with Hyun, I feel like I'm back at least 10 years ago." The two are in charge of the theme song for the new TV series "Waru-Who said it's not cool to work?" Starring Mio Imada. .. ..