ONLY ONCE, ONLY 7TH. was the sixth live by the IDOLiSH7 franchise, held at the Yoyogi National Gymnasium. It was a celebration of the franchise's seventh anniversary and it marked a special milestone as the number "7" is very a significant number within IDOLiSH7. The theme was "parade".
| Title | IDOLiSH7 7th Anniversary Event "Only Once, Only |
|---|---|
| Release Date | 2023-04-26 |
| Runtime | |
| Genres | Music |
| Production Companies | Bandai Namco Filmworks, TBS |
| Production Countries | Japan |
