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Ask English-speaking fans of Japanese pop how they first heard KIRINJI, and “Aliens” comes up more often than anything else. But the first encounter is almost never the 2000 release itself. It’s a cover on a late-night TV show, a Spotify autoplay after some city pop playlist, a friend’s funeral mix, a YouTube upload with 40 comments in three languages. KIRINJI songs don’t really live in the year they came out — they live in the year each listener happens to remember them. Every time the catalog resurfaces on Japanese charts, that pattern shows up again.
A song from 2000 sitting comfortably in a 2020s playlist is not a normal outcome in Japanese pop. It didn’t get there through a hit cycle. It got there through covers, word of mouth, and the strange grace of streaming. This piece walks through the KIRINJI story from the brother-duo beginning to the current solo-project era, from the perspective of someone who’s been following the catalog for a long time.
Key facts
- KIRINJI was formed in 1996 by real-life brothers Takaki Horigome and Yasuyuki Horigome, went indie in 1997, and made their major-label debut on Warner in 1998.
- “Aliens,” from the 2000 album 3, has become the band’s signature song and has been covered by a wide range of artists across generations.
- Younger brother Yasuyuki left in 2013; older brother Takaki continued the project with five new members under the alphabet spelling KIRINJI.
- The band lineup was dissolved at the end of 2020, and from 2021 onward KIRINJI has continued as Takaki Horigome’s solo project.
Brother duo, late ’90s Japan
KIRINJI started as a duo between older brother Takaki Horigome and younger brother Yasuyuki Horigome. The group formed in October 1996, with Yasuyuki on vocals and guitar and Takaki on guitar and vocals, went indie in 1997, and reached major-label debut in 1998 through Warner Music Japan. To picture the landscape they walked into: Japanese majors in the late ’90s were still echoing with Tetsuya Komuro-era production, dominated in the middle by Mr. Children and Spitz, with the tail end of Shibuya-kei drifting off to the side. A songwriting-heavy brother duo didn’t fit any of those slots. That not-fitting was the first impression they made.
Takaki, from Sakado in Saitama, went through Seibu Gakuen Bunri High School and then Waseda University’s second-department literature program (Eastern cultures), formed KIRINJI with his brother Yasuyuki in 1996, and made their major-label debut in 1998. From very early on he wrote with a vocabulary that didn’t sound borrowed from anyone. Yasuyuki handled lead vocals and guitar, and also wrote key songs including the signature “Aliens”; later he would branch out into solo work and the unit Uma no Hone. That split of roles is a lot of what gave early KIRINJI its depth.
Going back to the early records now, what stands out against their peers is the sheer number of songwriting moves per track. Modulations, folded-over chord changes, layered harmonies — all of it built with a specific attitude of “function as major-label pop, but hide the details that trained ears will catch.” Around 2000, not many Japanese pop acts were weaving harmonic detail this deliberately.
Personal note. I bought my first KIRINJI CD as a student in 2003, a used copy of 3. The cover — the brothers’ faces slick with what looked like oil — put me off for a second. By around track three on the A-side I was relieved I’d bought it. That texture still comes back through my fingertips every time I open the record on streaming.
“Aliens” and the slow leak
You can’t talk about KIRINJI without “Aliens.” But the more honest description isn’t “hit.” It’s “song that arrived late and kept arriving.” “Aliens” was released as KIRINJI’s sixth single on October 12, 2000 (written and composed by younger brother Yasuyuki Horigome, arranged by KIRINJI and Keiichi Tomita), three months after “Kimi no Mune ni Dakaretai,” and by Oricon’s tally it became their third-best-selling single. It wasn’t a phenomenon at the time. And yet, decades later, it’s the one that’s still finding new listeners in the streaming era.
The parent album is 3, KIRINJI’s third studio album, released on November 8, 2000 through Warner Music Japan, with remastered editions later in 2014 and 2018 and a vinyl edition in 2016. The infamous cover — the two brothers photographed close-up after having a mix of water and oil sprayed onto their faces to give them a slick, oily finish — is one of those sleeves that still looks like a dare. At release, it wasn’t a big commercial success, but as “Aliens” got covered by other artists and picked up for commercials, the album drew fresh attention and grew into a second life. That “canonized after the fact” trajectory is probably the single best summary of what the KIRINJI name has come to mean.
Musically, “Aliens” works less through melodic peaks and more through the distance between the harmony and the vocal. The lyric’s core image — two people walking through the night — is drawn in unusually high resolution. That’s part of why covers keep working: jazz, R&B, folk, even hip-hop-leaning arrangements can all find a way in. If part of the definition of a standard is “a piece other performers can use as a workbench,” then “Aliens” has been that workbench for over twenty years.
Longtime listeners have probably noticed this: the song hits differently while driving at night. The way the chord progression resolves seems to fit exactly into the small silences between a red light and pulling away again. It’s a song for city nights viewed through a windshield. Listened to on earbuds versus car speakers, the outline of it changes shape.
2013: from two brothers to a six-piece
The biggest pivot came in 2013. Yasuyuki Horigome left KIRINJI, and that same year the project restarted as a band called KIRINJI (now written in the alphabet spelling) with five new members alongside Takaki. Most groups in that situation pick a new name. KIRINJI chose to keep the name and change the instrumentation instead. That decision quietly pays off across the next decade.
The six-piece KIRINJI extended the intricate pop of the early years but pulled in a wider vocabulary — funk, neo-soul, dance production. The 2016 album Neo is the clearest snapshot of that. Released on August 3 as the group’s twelfth studio album, Neo included their first serious outside collaboration, with the Japanese hip-hop crew RHYMESTER guesting on “The Great Journey.” For a lot of longtime fans of the brother-duo years, that connection to Japanese rap read as unexpected at first. Sit with the album for a while and it starts to feel less like a jump and more like a natural merge.
Line the early records up next to the 2010s ones and something interesting shows up. The tics of the songwriting — the way modulations land, the way vocal phrases fall off at the end, the way harmonies are stacked — barely change. What changes is the furniture around them. So the post-2013 KIRINJI can sound like a different band from the outside, and like the same one from inside. Keeping that continuity intact is really Takaki’s load as the writer at the center.
Live footage from this era shows how much the harmony arrangements were doing. Having multiple singers on stage translated straight into the density of the mix. Erino Yumiki’s guitar and backing vocals in particular opened the band’s palette outward.
2021: reshaped again, into a solo project
Then, in the 2020s, KIRINJI changed shape again. From 2021, KIRINJI became Takaki Horigome’s solo project — the eight-year band lineup was retired, and the name continued as one person’s project. Keeping the name did real work here. From a listener’s angle, it doesn’t read as “the band broke up.” It reads as “one long circuit that keeps rewiring itself.”
The flagship record of the solo-project era so far is crepuscular, released in December 2021 as the fifteenth studio album, built around a keyword the project itself described as “soft psych,” pushing a new version of the KIRINJI sound. It moves between programmed and played textures in a way that feels current, held together by the same writing voice that’s been there the whole time. It’s quiet, but the heat is in there — the kind that shows a different face on each replay rather than announcing itself.
“Solo project” can sound like a step down. In practice the palette got wider, not narrower. Without a fixed lineup, each song can be built around whoever fits best. Features and collaborations happen more naturally. Over twenty-plus years, the KIRINJI name has become a pretty flexible container.
The core: songs you can sing, arrangements you can study
If you had to reduce KIRINJI’s music to one sentence, it would be this: songs strong enough to stand as pop, and harmony and arrangement complex enough to reward close listening, on the same plate. Not many Japanese pop writers have kept that balance this stubbornly for this long. Lean one way and you drift toward instrumental music; lean the other and you slide into ballad territory. KIRINJI’s been walking that middle line the whole time.
The early records lean audibly on ’70s AOR, singer-songwriter traditions, and soft rock. The 2010s KIRINJI adds neo-soul, funk, and the crossover with Japanese rap. The 2020s solo project brings in psychedelia and ambient textures. The genres shift, but at the center of the writing there’s one constant idea: use harmony to draw a scene. That’s why a track from twenty years ago can sit next to a new one in the same playlist without anything feeling out of place.
Where to start
Twenty-five years of catalog is honestly a lot for a new listener. So here’s a short path in.
- One song first: “Aliens.” At night, in a quiet room. Earbuds or car speakers, either works. If it doesn’t click, it doesn’t click — move on and it’s fine.
- One album next: 3. The high point of the brother-duo years. Dense with singles, and the KIRINJI vocabulary is at its most concentrated here.
- Going deeper: Neo. The definitive statement of the band-era KIRINJI. From here, working forward into the 2010s catalog shows the same writer’s hand pulling different sounds.
After that, drift toward cherish and crepuscular when the season fits, or back into the other brother-era albums. No need to rush the whole catalog. KIRINJI songs tend to come find you when you happen to need them.
One question to leave open, for old fans and new ones both: if you had to pick one KIRINJI song you’d want people to still be playing twenty years from now, which would it be? If your answer isn’t “Aliens,” you’re probably already pretty deep in.


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