Who Are You

Sam Kim's "Who Are You," from the Goblin (도깨비) soundtrack, is an acoustic ache dressed in cinematic patience. It opens almost unaccompanied — fingerpicked guitar, a hush of room tone — before strings swell underneath with that particular K-drama OST grandeur that knows exactly when to arrive. Sam Kim's voice is the draw: husky, sandpapered at the edges, remarkably weathered for a singer barely out of his teens, and he sings mostly in the crevice between speaking and crying, letting notes fray rather than resolve cleanly. The lyric asks the drama's central question literally — who are you, why do you feel like someone I already know — mapping onto the show's mythology of reincarnation and recognition across centuries. Emotionally it lives in that vertigo of meeting a stranger and feeling grief for them, longing without a memory attached to it. As part of one of the most commercially dominant OST packages in Korean television history, it carries enormous cultural weight: an entire cohort associates its first four bars with snow, buckwheat fields, and a sword in a man's chest. It suits winter walking, alone, when the cold makes everything feel slightly more significant than it is.