Minseo is the voice behind "Star" for the 'Doctor John' OST.

The music video features the emotions of doctors after a patient loses his life, and Kang Shi Young's (played by Lee Se Young) struggle as Cha Yo Han (Ji Sung) tries his best to be there for her. "Star" is about being by someone's side even during hard times. 

Listen to Minseo's "Star" above! Have you been watching 'Doctor John'?