Since their debut, KAT-TUN captivated many fans with their unique worldview and performances, and on March 31, 2025, they brought their journey as a group to a close.
Their songs are packed with elements that move listeners’ hearts—fierce yet heartrending lyrics, cool sounds, and more.
Many of you likely have that one special track—“I love that song!” or “This is the song that introduced me to them.” In this article, we’ll introduce KAT-TUN’s classic and popular songs.
From nostalgic tracks to timeless tunes that still shine today, we hope you’ll find your favorite.
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[KAT-TUN’s Classic Songs] A Curated Selection of Hit Tracks & Fan-Favorite Songs (1–10)
EUPHORIAKAT-TUN

An aggressive dance number with a cool, exhilarating beat that conveys a strong determination toward the future.
Included on KAT-TUN’s double A-side single released in September 2021, this track carries the power befitting a milestone marking their 15th anniversary.
Chosen as the theme song for TV Asahi’s OshiDora Saturday drama “The High School Heroes,” starring Bishonen, it expresses heroic spirit and bonds with friends that align with the drama’s world.
With a sound themed around timeless connections and a soaring sense of uplift, it’s sure to give listeners a powerful push forward.
When you’re about to take on a challenge or want to fire yourself up, listening to it will fill you with the energy to move ahead.
FlashbackKAT-TUN

This work was produced as a digital-only coupling track for the single “Roar,” released in March 2021.
Timed with the group’s 15th anniversary and their first-ever digital release, it stands as a landmark ballad.
The lyrics were written by Kenta Urashima, with composition by Kenta Urashima and Hiroto Kikuchi, delicately portraying the resolve to move forward while embracing memories of the past.
As the title suggests—meaning “reminiscence”—it’s a masterpiece that invites you to reflect on their journey and listen closely alone on a quiet night.
It’s also recommended for those who want to look back on the time spent with KAT-TUN and bask in a warm afterglow.
RoarKAT-TUN

This is KAT-TUN’s 28th single, released in March 2021 to mark the major milestone of their 15th anniversary.
It also drew attention for being chosen as the theme song for the NTV Saturday drama “Red Eyes: Kanshi Sosahan,” starring Kazuya Kamenashi.
The lyrics express the resolve to start walking toward the future while grappling with a present that has no clear answers, and the sound—combining fragility and strength—strikes a chord.
The arrangement, in which the three members’ vocals layer over the cool tones of piano and strings, is breathtaking.
It’s a track you’ll want to sink into when you need courage to move forward or on a quiet night when you want to face yourself.
a bolt from the blueKAT-TUN

As the title suggests, it’s a cool dance number that captures unexpected, shocking events and emotional upheavals with thrilling, “flash-like” words.
It distills KAT-TUN’s signature sharp, urban worldview, and the gripping tension that seizes the listener in an instant is irresistible.
Though performed on NHK’s The Shonen Club and at concerts since around 2005, this legendary masterpiece went unreleased in audio form for a long time.
Answering fervent fan requests, it finally received its first CD release on the fan-club–exclusive edition of the single “Roar,” released in March 2021.
It also drew attention for being packaged at the milestone of the group’s 15th anniversary.
Ain’t Seen Nothing YetKAT-TUN

A refined piano intertwines with restrained beats to create a medium-tempo number that exudes mature allure and nuance.
It stands apart from their previously wild and aggressive image, captivating listeners with a polished, sophisticated charm.
Produced as the lead track for the album “Honey,” released in March 2022, it served as a symbol for the project as a whole, with multiple versions of the music video unveiled ahead of the release.
Now a trio, the members’ individual expressiveness shines through in this track, making it ideal for quietly immersing yourself on a calm night or sinking into a chic, urban mood.
CRYSTAL MOMENTKAT-TUN

A KAT-TUN track that electrified the icy battlegrounds of winter 2022.
Chosen as the theme song for Nippon TV’s “2022 Winter Sports,” the piece drew major attention for Sho Sakurai of Arashi, who conceived the title and wrote the rap lyrics.
Fusing words that capture the athletes’ flashes of brilliance with a grand, stadium-filling sound, it powerfully stirs the listener’s heart.
It was also included on the album “Honey,” released in March of the same year, becoming a cherished song for fans.
Listen to it before a make-or-break moment, and it will sharpen your focus and lift your spirits.
It’s an anthem that cheers on not only sports moments but anyone taking on a challenge—be sure to give it a listen!
DANGERKAT-TUN

This track closes out the July 2019 album IGNITE and was produced as the lead song’s music video.
Symbolic of the album’s “fire” concept, its thrilling progression sets listeners’ hearts ablaze.
The lyrics, which reject complacency and voice a thirst for further evolution, also resonate as a statement of intent from the group.
Crafted with live performance in mind, it offers an immersive experience that conjures images of a feverish crowd and fiery special effects just by listening.
It’s a sharp-edged number you’ll want to play when you need to fire yourself up or surrender to KAT-TUN’s signature overwhelming intensity and aggressive sound.


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