10nin Matsuri (10人祭; "10 Person Festival") was one of three special "shuffle units" from Hello! Project in the summer of 2001. The shuffle theme was "summer festivals" and they had traditional Japanese festival song. They released only one single, "Dancing! Natsu Matsuri" (ダンシング！夏祭り; "Dancing! Summer Festival") which included their version of a c/w song that was shared by all three shuffles. True to their name, they had ten members selected from Morning Musume (Natsumi Abe, Kaori Iida, Kei Yasuda, Nozomi Tsuji, and Hitomi Yoshizawa), Coconuts Musume (Mika), Country Musume (Rinne), and Melon Kinenbi (Hitomi Saitou, Megumi Murata, and Masae Ohtani). The other two shuffle units that year were 三人祭 and ７人祭. Read more on Last.fm. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.