Nombre original: IDOLiSH7 7th Anniversary Event "ONLY ONCE, ONLY 7TH"
Fecha de estreno: 26 de abril de 2023
Película
Tiempo promedio: 365 minutos
Géneros: Musica
Sinopsis: 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".