7人祭 (7nin Matsuri, or Seven-Person Festival) was a Japanese pop unit that emerged from the Hello! Project roster in 2001. As a shuffle unit—a temporary collaborative group—the ensemble brought together multiple vocalists for a distinctive pop sound that blended upbeat melodies with accessible production.
The group's formation as part of the Hello! Project's experimental unit structure made them notable for their collaborative approach to J-pop during the early 2000s. While their tenure was brief, 7人祭 contributed to the era's exploration of group dynamics and vocal harmonies within Japan's pop music landscape.
