Morning Musume (モーニング娘。, Mōningu Musume.) is an all-girl J-pop group from Japan. Since their expansion into the Chinese market in 2007, it officially adopted the name Jou On Siu Neui Jou (Traditional Chinese:早安少女組。) in Chinese market. They are sometimes also referred to as "Momusu" (モー娘。, Mōmusu.?).Their act revolves around singing and dancing to generally upbeat melodies. They are the lead group of Hello! Project, masterminded by Naoki Yamazaki, and managed by producer Tsunku, who composes nearly all the lyrics and melodies for their songs. Currently, Morning Musume is Japan's Best Selling Female Group.