Kenshi Yonezu has become one of Japan's most trusted voices for movie soundtracks, crafting theme songs that don't just accompany films—they amplify the emotional experience and linger long after the credits roll. From his collaboration on the 2017 anime hit "Fireworks" to his recent work on the live-action adaptation of "5 Centimeters per Second," Yonezu has built a remarkable catalog of film music that spans everything from Studio Ghibli's introspective storytelling to the visceral energy of anime blockbusters.
We've compiled the complete picture of Yonezu's film theme song work, including release dates, the stories behind each collaboration, and what makes his approach to movie music so consistently powerful.
The Quick Version
- Kenshi Yonezu has created theme songs for at least seven major films, with several additional collaborations bringing the total higher
- His work includes "Spinning Globe" (Chikyu-gi) for Hayao Miyazaki's Studio Ghibli film "The Boy and the Heron" (Kimi-tachi wa Do Ikiru ka)
- "1991" served as the main theme for the live-action "5 Centimeters per Second" (Byosoku 5 Centimeter), released digitally on October 13, 2025
- He contributed both the opening theme "IRIS OUT" and ending theme "JANE DOE" (with Hikaru Utada) to "Chainsaw Man – The Movie: Reze Arc"
- His film songs are selected repeatedly because they integrate deeply with each story rather than simply decorating it
The Studio Ghibli Collaboration That Defined Contemplation
When Hayao Miyazaki chose Kenshi Yonezu to create the main theme for "The Boy and the Heron," it marked a significant moment in both artists' careers. "Spinning Globe" emerged as the voice of this deeply personal Ghibli film, a work about memory, loss, and coming of age. The song's contemplative tone mirrors the film's questions about how we live and what we carry forward from those who came before us.
The pairing felt natural to many who had followed Yonezu's work. His ability to capture complex emotional landscapes through melody and lyrics aligned perfectly with Miyazaki's storytelling approach. The song doesn't explain the film—it extends it, creating space for the same kind of reflection the movie itself invites.
A Personal Connection to "5 Centimeters per Second"
The live-action adaptation of Makoto Shinkai's beloved "5 Centimeters per Second" brought Yonezu full circle with a story that had touched him as a teenager. Born in 1991, he first encountered Shinkai's original animation and novel during his formative years, making his commission to write "1991" for the film adaptation particularly resonant.
The song was released digitally on October 13, 2025, and quickly became a focal point of the film's marketing. Special trailers featuring "1991" over scenes from the movie accumulated approximately 1.4 million and 1.75 million views across two versions even before the single's official release. The 18-year story arc at the heart of the film found its musical counterpart in Yonezu's work, with the title itself nodding to his birth year and the era when he first connected with Shinkai's storytelling.
The collaboration demonstrates how Yonezu approaches film music—not as an outside contractor but as someone personally invested in the emotional journey. His familiarity with the source material allowed him to write from a place of genuine connection rather than professional distance.
The Chainsaw Man Double Feature
For "Chainsaw Man – The Movie: Reze Arc," Yonezu took on an unusual dual role, contributing both the opening theme "IRIS OUT" and the ending theme "JANE DOE," a collaboration with Hikaru Utada. The opening theme achieved notable chart success, reportedly reaching number one in six countries and regions during the period from September 26 to October 2, 2025.
This double contribution allowed Yonezu to bookend the film's emotional experience. "IRIS OUT" sets the tone for the story to come, while "JANE DOE" provides the reflective space audiences need as they process what they've just witnessed. The collaboration with Utada on the ending theme brought together two of Japan's most distinctive voices in contemporary music.
From Fireworks to Ocean Spirits: The Early Film Work
Yonezu's journey into film music began prominently with "Uchiage Hanabi" (Fireworks), his 2017 collaboration with DAOKO for the anime film "Fireworks, Should We See It from the Side or the Bottom?" The song became one of his most recognizable movie tie-ups, capturing the bittersweet nostalgia of summer youth and fleeting romance that the film explored.
He followed this with "Umi no Yūrei" (Sea Ghost) for the animated film "Children of the Sea" (Kaiju no Kodomo), a project that allowed him to explore more mysterious, oceanic imagery. The song matched the film's dreamlike quality, its sense of vast unknowns beneath the surface of everyday life. Where "Uchiage Hanabi" had captured specific, vivid moments, "Umi no Yūrei" worked with broader, more elemental themes.
His collaboration on "NANIMONO" (featuring Yonezu) for the live-action film of the same name showcased yet another facet of his versatility, while "Plazma" for the Mobile Suit Gundam film "GQuuuuuuX -Beginning-" demonstrated his ability to match the scale and energy of franchise blockbusters. That Gundam film reportedly passed 1.9 billion yen in box office receipts within 17 days of release.
The Latest Addition: "Garakuta" for "Last Mile"
More recently, Yonezu contributed "Garakuta" (Junk) as the theme song for the film "Last Mile" (Rasuto Mairu). The track appears on his album "LOST CORNER," continuing his pattern of integrating film work into his broader musical output rather than treating movie themes as separate from his artistic identity.
This approach distinguishes Yonezu's film music from more transactional soundtrack work. Each theme song exists both as a piece of the film it serves and as a standalone work within his discography, allowing the songs to live beyond their original contexts.
Why Filmmakers Keep Choosing Yonezu
The recurring selection of Kenshi Yonezu for major film projects reflects deep trust from both filmmakers and audiences. His songs are described as going beyond background music to enrich the cinematic experience itself, amplifying emotional impact in ways that stay with viewers long after they leave the theater.
What sets his film work apart is integration rather than decoration. Yonezu's themes don't simply play over opening or closing credits—they become part of how we remember and understand the films themselves. When someone recalls "The Boy and the Heron" or the live-action "5 Centimeters per Second," Yonezu's music is woven into that memory, inseparable from the visual and narrative experience.
This integration comes from Yonezu's willingness to engage deeply with each film's story and emotional core. Directors can trust him to create something that extends their vision rather than competing with it, music that asks the same questions the film asks and leaves space for the same kinds of answers—or purposeful lack of answers.
What People Are Saying
"Every time I hear 'Spinning Globe' I'm back in that theater watching 'The Boy and the Heron' for the first time. The song doesn't just remind me of the movie—it brings back exactly how it felt to watch it."
"The fact that Yonezu was born in 1991 and wrote '1991' for the '5 Centimeters per Second' adaptation adds this whole other layer. He's not writing about someone else's nostalgia; he's writing about his own generation's experience of time and distance."
"'IRIS OUT' and 'JANE DOE' for Chainsaw Man show his range perfectly. The opening theme gets you hyped, and then that ending collaboration with Utada just sits with you in a completely different way. Same film, same composer, totally different emotional registers."
"I don't always love every movie Yonezu does music for, but I've never heard one of his film themes and thought it didn't belong. He has this ability to understand what the film is trying to be and meet it there."
Frequently Asked Questions
How many movie theme songs has Kenshi Yonezu created?
Yonezu has created theme songs for at least seven major films, with additional collaborations and contributions bringing the total number higher. His film music catalog includes work ranging from 2017's "Uchiage Hanabi" through recent projects like "1991" and "Garakuta."
Where can I listen to Yonezu's movie theme songs?
Many of Yonezu's film themes are available on his official artist channels and through standard music streaming platforms, though specific availability varies by song and region. Songs like "1991" received digital releases on their specified dates, while others appear on his studio albums.
Did Kenshi Yonezu write both theme songs for the Chainsaw Man movie?
Yonezu wrote the opening theme "IRIS OUT" independently and collaborated with Hikaru Utada on the ending theme "JANE DOE" for "Chainsaw Man – The Movie: Reze Arc." This dual contribution allowed him to shape both the film's opening energy and its closing reflection.
What makes Yonezu's approach to film music different?
Yonezu's film themes are characterized by deep integration with each movie's story and emotional core rather than serving as decorative additions. Filmmakers repeatedly choose him because his songs extend their vision, asking the same questions the films ask and becoming inseparable from how audiences remember the cinematic experience.
Has Yonezu worked with Studio Ghibli before "The Boy and the Heron"?
"The Boy and the Heron" marked Yonezu's collaboration with Hayao Miyazaki and Studio Ghibli. "Spinning Globe" served as the main theme for this deeply personal Ghibli film about memory, loss, and coming of age.
The Staying Power of Integration
Kenshi Yonezu's film music catalog demonstrates what happens when an artist approaches movie themes not as assignments but as opportunities for genuine creative dialogue. Each song in his collection reflects both his distinctive voice and the specific emotional landscape of its film, creating music that serves the story while standing as compelling work in its own right. From the summer nostalgia of "Uchiage Hanabi" to the contemplative depths of "Spinning Globe," his themes have become how we remember the films they accompany.
As Yonezu continues to accept new film projects, we're watching a body of work take shape that may well define an era of Japanese cinema. His songs don't just amplify emotion—they become part of the emotional architecture itself, inseparable from our experience of the stories they serve.
