Morning Musume

Morning Musume (モーニング娘。, Mōningu Musume.^?), sometimes referred to as Momusu (モー娘。, Mōmusu.^?) is a Japanese girl group, whose act generally revolves around singing and dancing to upbeat melodies. They are the lead group of Hello! Project, which is managed and produced by Tsunku, who composes nearly all the lyrics and melodies of their songs. Currently, they hold the record of having the highest overall single sales (of a female group) on the Oricon charts.^[1]
Musume (娘^?), in this context, means daughter. The group is known for their ever fluctuating line-up, with "graduations" and auditions held nearly every year. The year 2008 was the only one so far when no changes in the line-up occurred. Over the years, the group produced several splinter groups, and often worked with other Hello! Project acts, including Country Musume, Berryz Kobo, Melon Kinenbi, and v-u-den.
Since their expansion into the Chinese-speaking market in 2007, the group officially adopted the name Jou An Sao Nu Jou (Zǎo Ān Shào Nǚ Zǔ, Traditional Chinese: 早安少女組, meaning, "good morning girl's group").^[2]