Soundtracks are usually underrated. People think of them as nothing more than a song playing in the background or while the credits are rolling, but a good (and apt) soundtrack can open the floodgates of memories of a drama or movie.

And nothing attests to this better than the OST of K-dramas. It’s almost impossible not to relate a soundtrack to a drama after sitting through 20 episodes of the song playing in the background. And more often than not, listening to the song even after the drama is over can trigger flashbacks of scenes in the show, which might or might not cue waterworks. Here are some of the most memorable OSTs. Can you guess which drama they belong to?

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