was a Japanese girl group and sub-group of Morning Musume. The group was made up of five past and then-present members of Morning Musume and created to celebrate their 10th anniversary.
In early 2007, Morning Musume Tanjà  10nen Kinentai was made. They released a commemorative Single called . Tsunku, the producer of Morning Musume, stated that the members chosen symbolize the grassroots beginning of the group; how they had five members ranging in age from 14-24. Additionally, each member was from an odd generation. On August 8, 2007 they released a second single - which was also their last one - . The group was only active during 2007 for Morning Musume's 10th anniversary.
The group had a concert tour starting on August 11, 2007, ending September 1, 2007, located in six different stadiums. The tour was named , and was later released on DVD on November 14, 2007.