If you thought the Steel Ball Run anime couldn’t get any more hype, think again. Japanese band Kroi has officially announced their new single “SPIN” as the upcoming opening theme for Steel Ball Run: JoJo’s Bizarre Adventure — and the anime community is absolutely losing it.
Kroi Takes the Reins for JoJo’s Most Ambitious Arc
The announcement dropped on September 24, 2026, sending shockwaves through every corner of anime social media. Kroi, the five-member Japanese funk-rock band known for their genre-bending sound, will be lending their signature groove to the seventh arc of Hirohiko Araki‘s legendary manga series. The song title — “SPIN” — is practically a love letter to fans who know exactly how central the Spin technique is to Gyro Zeppeli‘s entire fighting philosophy.
For the uninitiated, the Spin is the core combat mechanic in Steel Ball Run. It’s the technique that Gyro Zeppeli uses with his steel balls, the same power that gives paraplegic jockey Johnny Joestar hope of walking again. Naming the opening theme “SPIN” isn’t just clever — it’s practically a declaration of intent.
Why This Pairing Is Perfect
Kroi isn’t your average J-rock act. Their sound blends funk, R&B, hip-hop, and rock into something that feels both retro and futuristic simultaneously. If you’ve heard tracks like “Balmy Life” or “FIRE,” you already know they bring an energy that’s equal parts smooth and explosive. That sonic DNA is an ideal match for a story set in 1890s America, following cowboys, outlaws, and Stand users across a deadly transcontinental horse race.
The Steel Ball Run anime, which premiered on Netflix in March 2026, has already proven to be a massive hit. The adaptation of Hirohiko Araki‘s manga has been praised for its stunning animation quality and faithful storytelling. Adding Kroi to the mix is like throwing gasoline on an already raging fire of fan enthusiasm.
The Steel Ball Run Anime Is Already Breaking Records
Since its premiere, Steel Ball Run has quickly become one of the most-watched anime titles on Netflix globally. The story of Johnny Joestar and Gyro Zeppeli competing in the titular cross-country horse race from San Diego to New York City — while battling against the schemes of President Funny Valentine and his devastating Stand, Dirty Deeds Done Dirt Cheap (D4C) — has captivated audiences who may have never touched a JoJo manga before.
The anime adaptation has brought new attention to characters like the ruthless rival Diego Brando, the secretive Hot Pants, and the quietly courageous Lucy Steel. Each episode has generated massive discussion threads across Reddit, Twitter, and anime forums worldwide.
What Makes “SPIN” So Significant
JoJo’s Bizarre Adventure has a legendary track record with opening themes. From “Bloody Stream” by Coda to “Fighting Gold” by Coda and “STONE OCEAN” by Ichigo from Kishida Kyoudan, every opening has become iconic in its own right. The pressure on Kroi to deliver something worthy of this legacy is immense — but based on their discography, they seem more than up to the task.
The title “SPIN” also hints at where the anime might be heading narratively. As Johnny Joestar develops his Stand Tusk and learns to harness the Spin technique from Gyro, the story escalates dramatically. The Golden Spin — the perfect rotation that can overcome even the most powerful Stands — is the ultimate culmination of everything the Spin represents.
Fan Reactions Are Through the Roof
Social media erupted within minutes of the announcement. Fan artists immediately began creating artwork imagining what the new opening animation might look like. Predictions are flying about whether the new opening will cover the Funny Valentine arc specifically, or serve as a broader transition theme as the race enters its final stages.
Many fans have pointed out that Kroi’s music style — with its heavy bass lines, syncopated rhythms, and soulful vocals — could perfectly complement the Western-themed visuals of Steel Ball Run’s American frontier setting. The band’s frontman, Naito Uchida, has been known to incorporate visual storytelling into their music videos, making the anime collaboration feel like a natural evolution.
What’s Next for Steel Ball Run?
With the new opening theme confirmed, speculation about the anime’s upcoming episodes has reached a fever pitch. The adaptation still has significant ground to cover, including some of the manga’s most beloved and emotionally devastating moments. Without spoiling too much, let’s just say that the relationship between Johnny and Gyro is heading toward territory that will require tissues. Lots of tissues.
The combination of Anime News Network’s coverage and Netflix‘s global platform means this news will only continue to snowball in the coming weeks.
What Do You Think?
Are you excited about Kroi performing the new Steel Ball Run opening? Do you think “SPIN” will live up to JoJo’s legendary opening theme legacy? Which JoJo opening is your all-time favorite? Drop your thoughts in the comments below — and don’t forget to share this with every JoJo fan you know. The hype train has officially left the station, and it’s moving at Golden Spin velocity.
