I'm not a huge kpop lisener, but there are a few Korean singers that I follow. Taeyeon is a former member of "Girls Generation", and branched off into her own solo career several years ago. She has powerful vocal range, and a lot of songs have a sort of "cinematic" feel that I can envision hearing in a movie soundtrack. Although, this is a cover song from Adele, I think she did a great job on it.