TOMORROW X TOGETHER Score First-Ever No. 1 on Billboard Japan Hot 100 with 'Setsuna Hanabi'
TOMORROW X TOGETHER's 'Setsuna Hanabi' has debuted at No. 1 on the Billboard Japan Hot 100, giving the K-pop group its first-ever chart-topper on Japan's flagship singles ranking. The chart, dated 26 August 2026 and tallying the week of 17–23 August, was published by Billboard Japan and confirmed by Billboard's US chart desk (Billboard).
'Setsuna Hanabi' is the title track of the group's fifth Japan single, released on 19 August. It also claimed No. 1 on the Oricon Weekly Digital Single chart, according to the Chosun Ilbo's English-language edition, meaning the track topped both of Japan's major chart systems in the same week (Chosun).
The Billboard Japan Hot 100 combines physical sales, digital downloads, audio streaming, radio airplay, video views and karaoke data into a single composite ranking. 'Setsuna Hanabi' won the week on the strength of dominance across two metrics: it placed No. 1 for both radio airplay and downloads. Physical sales were strong but not the category leader — 420,878 copies put it at No. 2 on the sales sub-chart. Streaming landed at No. 13 and video views at No. 21.
That sales gap matters because the act above them moved nearly double the units. AKB48's 'Suki-ish', the title track of the idol group's 68th single and also released on 19 August, posted the week's highest physical sales at 765,977 copies but settled for No. 2 on the Hot 100. The composite formula rewards breadth: TOMORROW X TOGETHER's radio and download dominance outweighed AKB48's commanding sales lead.
The rest of the top five carried its own storylines. EBiDAN's 'Yes! Tokyo', credited to a coalition of nine artist groups under the EBiDAN umbrella, fell one spot to No. 3. Kento Nakajima's 'ONIGOTO' debuted at No. 4, opening the second season of the anime 'The Elusive Samurai' with 90,112 physical copies sold — No. 3 on the sales sub-chart and No. 4 for downloads. Mrs. GREEN APPLE's 'Brand New', the theme for Japan's dubbed release of 'Spider-Man: Brand New Day', slipped to No. 5 but held No. 1 on streaming for another consecutive week.
Further down, the chart's long tail offered a mix of staying power and rediscovery. Kenshi Yonezu's 'IRIS OUT' sat at No. 11 in its 49th week on the chart. Sakanaction's 'Yoru no Odoriko' ranked No. 10 in its 28th week. Mrs. GREEN APPLE's 'Aoi to Natsu' appeared twice — at No. 40 (342 weeks) and No. 47 (355 weeks) — a quirk of Billboard Japan's chart methodology, which can list different versions of the same song separately.
Perhaps the most striking entry was at No. 87. SPEED's 'Body & Soul', originally released in 1997, made its first-ever appearance on the Billboard Japan Hot 100 after being featured as the theme song for the Netflix reality series 'Badly in Love' Season 2. A remastered digital release drove gains across radio and streaming, pushing a 29-year-old track onto a chart it had never previously reached.
For TOMORROW X TOGETHER, the No. 1 arrives as the group's Japan catalogue continues to deepen — five singles in, and now a chart-topper on both the country's major rankings. For fans tracking the composite chart's mechanics, the week is a clear illustration of how the formula works: win enough categories decisively, and even the week's biggest seller has to settle for second.
