Oncast Music · Culture Tonight

Sakurazaka46's first Japan Hot 100 No. 1

· Fact-checked before it aired. Unconfirmed claims from this segment are not shown.

Sakurazaka46's "Ai MUST BE" debuted at No. 1 on the Billboard Japan Hot 100 for the week of Oct. 21, 2026, with 736,759 first-week physical sales. iiONDO's debut single "Hatsukoi ONDO" entered at No. 5 with 202,345 physical copies sold.

Fact-check

VERIFIED TRUE

Sakurazaka46's "Ai MUST BE" debuted at No. 1 on the Billboard Japan Hot 100 for the week of Oct. 21, 2026, with 736,759 first-week physical sales. iiONDO's debut single "Hatsukoi ONDO" entered at No. 5 with 202,345 physical copies sold.

Sakurazaka46’s ‘Ai MUST BE’ Tops Japan Hot 100 as iiONDO’s Debut Single ‘Hatsukoi ONDO’ Bows at No. 5 https://t.co/wqKQagvifG

Original post · @billboard

[billboard-japan.com](https://www.billboard-japan.com/charts/detail?a=hot100&id=78901) POST 2111656543964045515: NOCLAIM POST 2113288675492548829: NOCLAIM POST

Sources

What the hosts said

CSakurazaka46 just landed their first number one on the Japan Hot 100 with 'Ai MUST BE' — and the numbers are wild.
LSeven hundred thirty-six thousand physical copies in the first week. In 2026. That's not a fanbase, that's a movement.
CBillboard Japan has it debuting at the top, and iiONDO's debut single 'Hatsukoi ONDO' came in at five with over two hundred thousand copies.
LTwo debut singles in the top five the same week. Japan's idol pipeline is just built different.
CMeanwhile I'm still trying to get my friends to buy one album.
LYou need a handshake event.
CDifferent world entirely: Steph on X finally watched the new Ted Lasso season and says the theme song switch-up in the finale broke her.
LThe theme song got her? Not the actual finale?
CShe says she was already on the edge, and then the switch-up hit. I get it — when a show changes its own theme, it's saying something.
LIt's a cheap trick, honestly. You're already crying, and then they remix the song you've heard for three seasons.
CCheap trick or not, it works. She posted crying emojis. Five of them.
LFive crying emojis is a review. I respect it.
CAnd here's one that'll start a fight: a Chicago Fire fan says the new season is 'going woke' and by the finale it'll be fully woke.
LOh, come on. 'Going woke' — what does that even mean on a firefighter show? They rescue someone from a burning building and then discuss pronouns?
CHe says the first two episodes are 'leading that way' and he's not sure if he's right or wrong.
LHe's wrong. Chicago Fire has been doing social issue storylines for years. This isn't new.
CBut that's the thing — people notice when a show shifts tone, and they call it whatever word is handy.
LNo, 'woke' isn't handy, it's lazy. If you don't like a storyline, say what you don't like. Don't slap a label on it and call it a day.
CYou're saying a fan on X should be more specific?
LI'm saying if you're going to announce the season finale will be woke, at least tell me which character.
CFair. Moving on — The Gentlemen season finale is streaming on Netflix tonight, and Avi on X is calling The Diplomat season four a 'what a series' finale.
LTwo very different shows, same night. One's Guy Ritchie doing Guy Ritchie things, the other's Keri Russell being quietly terrifying.
CThe Diplomat's been the sleeper hit of the year for me. Nobody talks about it, and then you watch it and you're furious there's no next episode.
LThat's the mark of a good finale — you're angry it's over.
CAnd over on Bluesky, Shelly Frankenstein is asking a harder question: show me the Democrats on TV defending trans rights. Show me the Democrats fighting for us.
LThat's a real frustration. People want to see the fight, not just the statement.
CAnd it's not just one person — it's a whole thread of people saying they don't see it on their screens.
LThe question is whether TV is reflecting reality or shaping it. If the only Democrats you see are the ones who don't fight, that becomes the story.
CAnd that's a story people are clearly tired of.
LMeanwhile, Jon Steckelberg on Bluesky has a lighter one: name a robot woman in a film or TV show.
CAva from Ex Machina. Done.
LYou didn't even pause. But the replies are a goldmine — people are naming everything from Metropolis to WandaVision.
CIt's one of those questions that seems simple and then you realize there are hundreds of answers.
LAnd Ruby on Bluesky sums up the whole week with one line: 'Fucking billionaires. They ruin everything!'
CNo context, no follow-up. Just a thesis statement.
LHonestly, it's the most relatable post of the night.

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