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[Korean Drama OSTs] Classic Popular Songs That Color the Story: Best Masterpieces

A considerable amount of time has passed since Korean dramas first made their way to Japan.

Starting with the spread sparked by Winter Sonata in 2003, and further propelled by the K-POP boom, people have grown more familiar with K-Culture!

Nowadays, it seems to be loved by many people regardless of gender or generation.

Korean dramas, whose popularity keeps rising, produce countless masterpieces every year!

In this article, we’ve researched a wide range of OSTs—from relatively new tracks to popular classics and timeless favorites—covering theme songs and insert songs from Korean dramas.

We hope you’ll look back on fond memories and discover some wonderful OSTs.

[Korean Drama OST] Classic Popular Songs That Color the Story: Best Masterpieces (11–20)

ButterflyJ.UNA

Japanese to English Translation: J.UNA 'Butterfly' (Nevertheless (알고있지만), OST Pt. 4) [Official]
ButterflyJ.UNA

This is the track featured in Part 4 of the romance drama Nevertheless, starring Han So-hee and Song Kang.

I’m sure many people became fans of the two through this drama.

It plays from the early episodes and is one of the most popular OSTs in the series.

The song is by J.UNA, a young singer-songwriter who grew up in Germany.

The melody has a Western pop feel, and the crisp tempo and vocals are very pleasing.

The lyrics, which seem to reflect the feelings of the protagonist Park Jae-eon, might pull you in as well, hinting at suspicion and the push-and-pull of romance.

BeautifulPunch

[MV] Punch(펀치) – Beautiful (ENG SUB.) | 🤝Good Partner 굿파트너 OST
BeautifulPunch

Punch, a South Korean singer-songwriter known for contributing to the OSTs of numerous acclaimed dramas, released this song in July 2024 as part of the soundtrack for the legal drama “Good Partner.” It’s a beautiful ballad with piano and string arrangements, and Punch’s emotive vocals resonate deeply.

The lyrics, which express gratitude toward a loved one and a sense of happiness, are perfect not only for those in love but also for moments when you want to convey your appreciation to someone.

During production, Punch reportedly rewatched scenes from the actual drama multiple times to convey the song’s emotions more authentically.

Romance Is a Bonus Book

All I do(그대만 떠올라)Roy Kim

[MV] Roy Kim(로이킴) _ All I do(그대만 떠올라) (Romance is a Bonus Book(로맨스는 별책부록) OST Part.3)
All I do(그대만 떠올라)Roy Kim

This is an OST from Romance Is a Bonus Book starring actor Lee Jong Suk.

It’s a love story between an author who became an editor-in-chief at a young age and a once-popular copywriter who’s doing her best to make a comeback.

It’s a gentle ballad that I think anyone can relate to—one that makes the person you love come to mind in every moment of being in love.

Roy Kim’s delicate vocals really resonate.

The drama is available on Netflix, so if you’re interested, be sure to check it out!

Every Day, Every Moment)Paul Kim

폴킴 (Paul Kim) – 모든 날, 모든 순간 (Every Day, Every Moment) [가사 비디오]
Every Day, Every Moment)Paul Kim

A slow ballad released by Paul Kim in 2018.

It was featured on the soundtrack of the drama “The Beauty Inside” and became a big hit, greatly boosting his recognition.

Even if you don’t know Paul Kim, you might know this song.

A love song about staying by someone’s side.

Translating the title into Japanese gives “All Days, Every Moment,” which truly feels imbued with precious emotion.

It’s a long-loved song with a gentle warmth that lets you breathe easy.

Highly recommended not only for those who enjoy calm music but also as a musical gift to someone special.

Lean On MePark Hyung Sik

박형식(Park Hyung Sik) – 내게 기대 (Lean On Me) (닥터슬럼프 OST) Doctor Slump OST Part 6
Lean On MePark Hyung Sik

Park Hyung-sik’s “Lean On Me” is a moving message song that emphasizes the importance of supporting one another.

Released in March 2024 as part of the Doctor Slump OST, it also enhances the drama’s sense of immersion.

Park Hyung-sik’s gentle, resonant voice strikes a chord as an anthem for those facing difficult times.

Set to a beautiful melody centered on piano and guitar, it feels as if the song gently urges us to join hands with the ones we love and keep moving forward.

When you find yourself at a crossroads in life, this track will surely give you courage.

What are weHA SUNG WOON

[엄마친구아들 (Love Next Door) OST Part 2] 하성운 (HA SUNG WOON) – What are we MV
What are weHA SUNG WOON

The OST for the drama Love Next Door, released in September 2024.

Sung by Ha Sung Woon, a former member of Wanna One, this piece is a sweet yet bittersweet ballad that portrays a relationship shifting from childhood friends to lovers.

His clear, delicate vocals beautifully capture the nuanced emotions that sway between friendship and romance.

Featured during the drama’s highlight scenes, this song plays a key role in moving the audience.

Highly recommended for those who want to empathize with the feelings of being in love—it will surely deepen your feelings for someone special.

[Korean Drama OST] Classic Popular Songs That Color the Story: Best Masterpieces (21–30)

While you were sleeping

It’s youHenry

The song begins abruptly, with no intro.

The vocalist’s sweet voice and the gently, softly played piano tug at the heart.

From there it keeps accelerating, building up until the chorus reaches a fever pitch.

The breathy, strained high notes convey an intense sense of urgency.