[New Content] "listening party" is now available on back number app! The "Grateful Yesterdays Tour 2026" listening party will be held on June 28th (Sun) at 9:00 PM!

We're pleased to announce that a new feature for back number app, "listening party," will be released in late June!

We will notify you via the app when it is released.

Furthermore, after the Kumamoto performance on June 28th (Sun) of the ongoing stadium tour "Grateful Yesterdays Tour 2026," we will be holding a tour setlist listening party that anyone who logs into the app can participate in!

Let's share the excitement and emotion of the tour with fans all across the country in real time.

*Members will not be participating.

<What is a listening party?>

This is an online event where participants simultaneously play music at a designated time and share their impressions in real time via chat.

Even if you're in a different location, you can enjoy a sense of unity as if you were at the same live venue.

・Click here for details about the listening party

https://backnumber.info/feature/listeningparty

▼Target audience

I have installed the official back number app.

Those who are Apple Music paid subscribers or Spotify Premium subscribers

*Even if you are not a "one room" member, you can participate if you have a Plus member ID.

▼How to participate

You can join the listening party using back number app.

You can participate after downloading the application and logging in with your email address or Plus member ID.

*Participation requires a paid Apple Music subscription or a Spotify Premium subscription.

▼ Install back number app here

iOS：https://apps.apple.com/jp/app/back-number/id1304228982

Android：https://play.google.com/store/apps/details?id=info.oneroom

*Notes

• You need to update to the latest version of the app to use this feature.We will notify you via the app when the latest version is released.

Participation in the listening party requires a paid Apple Music subscription or a Spotify Premium subscription.

Participating will consume a significant amount of data, so please watch in an environment with a stable internet connection such as Wi-Fi.