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K-POP New Song Release [September 2025]

In the K-pop scene, plenty of new songs arrive every month.

Among the tracks released in September 2025, there might be a wonderful song you haven’t discovered yet.

From numbers that made headlines at the time to hidden gems that have been steadily gaining popularity, this article offers a thorough introduction to the songs that came out that month.

Whether you want to keep up with your favorite artists or are looking for a new bias to support, be sure to find a track that catches your ear!

K-POP New Song Releases [September 2025] (1–10)

Dream BusDAY6

DAY6(데이식스) “꿈의 버스” M/V
Dream BusDAY6

A powerhouse band in which every member writes and composes, DAY6 delivers this track as part of their 10th-anniversary album, The DECADE, released in September 2025.

It likens the hustle and bustle of daily life to riding a bus, with dreams as the destination, expressing a firm resolve to never let go of hope.

The exhilarating pop-punk band sound and energetic vocals are refreshing, and just listening fills you with positivity.

This song is one of the lead tracks from the group’s first full-length album in about six years.

It’s brimming with their journey and their determination for the future, making it truly moving.

I hope you’ll listen to it as an anthem to cheer you on when you’re taking a new step forward.

INSIDE OUTDAY6

DAY6(데이식스) “INSIDE OUT” M/V
INSIDE OUTDAY6

Day6, a band popular from all angles for their exceptional songwriting.

This track is included on their milestone album “The DECADE,” released in September 2025 to mark their 10th debut anniversary.

The song’s theme is the intense conflict between a polished exterior that strives for perfection and the irrepressible true feelings that overflow from within.

It portrays the clash between a controlled self and the desire to be honest in front of the one you love, making your heart swell.

The dramatic band sound explodes alongside the emotions in the chorus, leaving a strong impression.

The album posted first-week sales exceeding 180,000 copies.

It’s a song you’ll want to listen to when you’re ready to set your true feelings free!

bodyDAYOUNG

DAYOUNG (다영) “body” Official MV
bodyDAYOUNG

Dayoung, an artist who shines as the lead vocalist of the popular girl group WJSN, is known within the group as a bright mood-maker.

Since their debut in February 2016, she has captivated fans with her assured vocal prowess.

This track marks her solo debut as the lead song.

It’s an uptempo pop-dance number that sings of the shock of love at first sight and an instinctive magnetic pull.

A danceable beat that evokes the heat of a summer night carries a straightforward, sensuous longing.

The sound balances breezy, dance-inducing energy with the exhilarating edge of romance.

The track is included on the digital single album “gonna love me, right?” released in September 2025.

It’s a perfect song for playful nights that lift your mood.

K-POP New Song Releases [September 2025] (11–20)

CRZYHAECHAN

HAECHAN 해찬 ‘CRZY’ MV
CRZYHAECHAN

Haechan, who enjoys immense popularity as a main vocalist across multiple NCT units.

This is the title track from his first solo album, “TASTE,” released in September 2025.

It’s an R&B dance number marked by a funky rhythm and guitar, themed around the tension of romantic push-and-pull, and it showcases Haechan’s expressive vocals to the fullest.

You can sense a mature allure that’s distinct from the expressions he shows within the group.

The release marked a brilliant start to his solo career, earning first-place trophies on music shows.

It’s a perfect listen for nights when you want to sink into a sophisticated, urban mood.

CHAN-RANIDID

IDID 아이딧 ‘제멋대로 찬란하게 (CHAN-RAN)’ MV
CHAN-RANIDID

IDID is a STARSHIP boy group born from a survival show.

This track serves as the title number of their debut EP, “I did it.”, released in September 2025.

Arrangers include Dem Jointz, known for work with EXO, among others.

It’s a refreshing dance-pop song that layers light, breezy tones over a low-centered hip-hop beat.

The lyrics embrace one’s unfinished self and carry a strong resolve to shine in one’s own way, giving listeners a gentle push forward.

Their performance of the song at the debut showcase also drew attention.

It’s an energetic number you’ll want to play when starting a new challenge!

Bye, SummerIU

IU ‘바이, 썸머’ Lyric Video
Bye, SummerIU

A digital single by IU, a nationally beloved singer with immense popularity, released in September 2025.

Remarkably, it’s the number fans have been eagerly awaiting ever since she performed it during her 2024 world tour! IU herself wrote the lyrics and crafted the melody, releasing the song as a gift to share the end of summer with her fans.

Set against a clear, shimmering band sound, it expresses a bittersweet farewell to the passing summer and gratitude for the irreplaceable moments spent with her fans.

You can almost picture the cool breeze and twilight scenes, and feel a heart-tugging sense of poignancy.

It’s perfect for those moments at summer’s end when you want to look back on memories and sink into a slightly sentimental mood.

This work is an emotional piece that conveys IU’s deep affection for her fans.

Think Too Much (feat. DAMINI)Jang Wooyoung

Jang Wooyoung “Think Too Much (Feat. DAMINI)” M/V
Think Too Much (feat. DAMINI)Jang Wooyoung

A dance-pop tune released in September 2025 by Wooyoung, who also shines as the main dancer of the popular group 2PM.

It marks his first Korean solo comeback in about seven years and serves as the title track of his mini-album “I’m into.” Wooyoung himself wrote and composed the song.

It carries a self-empowering message that urges his overthinking self to take that first step—“There’s no time, move now.” Its brisk beat and energetic sound blow away hesitation.

The contrast between Wooyoung and featured artist Damini adds even more appeal to the track.

It’s the kind of song that will give you courage when you find yourself overthinking before starting something.