"It's You" is the second OST from the tvN�drama series, and it's written by Kim Se Jin�and Midnight. The romantic track serves as the theme song for Lee Young Joon (played by Park Seo Joon) and his growing feelings for Kim Mi So (Park Min Young).

Check out Jung Se Woon's "It's You" above. Have you been watching 'What's Wrong With Secretary Kim'?