Billboard Japan unveiled its 2026 mid-year charts, tallying the period from Nov. 24, 2025, to May 24, 2026.
On the all-genre song chart Japan Hot 100, Kenshi Yonezu’s “IRIS OUT” claims the No. 1 spot. Written as the theme song for Chainsaw Man – The Movie: Reze Arc, the track hit 100 million streams in four weeks, the fastest any song has reached that milestone in Billboard Japan history. It also peaked at No. 5 on the Billboard Global 200 dated October 4, 2025, the highest position ever achieved by a Japanese-language song on that chart. The long-running hit has become a hit both domestically and internationally, riding on the strength of the anime’s popularity. Yonezu swept a total of 11 mid-year chart titles including this one.
“I’m proud that ‘IRIS OUT’ has become a song so many people have taken to heart,” says Yonezu. “Listening back to it now, I can’t help but laugh at what an outrageously unhinged song it is, but having put something like this out into the world at this particular moment in time, and being able to keep making music from here, is the greatest happiness I could ask for as a pop musician. I want to express my gratitude once again to Chainsaw Man, a truly extraordinary work. Thank you.”
