Berryz Kobo (Berryz工房, Berryz Kōbō, lit. "Berryz Workshop") was a Japanese idol girl group formed by Up-Front Promotion in 2004 and associated with Hello! Project. The group's members consisted of Hello! Project Kids members Saki Shimizu, Momoko Tsugunaga, Miyabi Natsuyaki, Chinami Tokunaga, Maasa Sudo, Yurina Kumai, and Risako Sugaya; Maiha Ishimura left the group in 2005.

Berryz Kobo debuted with their first single in March of the same year. In 2007, Berryz Kobo became the youngest act ever to give a solo concert at Saitama Super Arena. In 2008, the group received the Best Asian Newcomer Award at the Asia Song Festival and a Cable Music Award at the 41st Japan Cable Awards ceremony. As of December 2014, the group had released 36 singles, nine studio albums, one EP and one compilation album. Berryz Kobo's combined CD and DVD sales exceeded one million copies in Japan alone.