Japanese singer who is a sixth generation member and leader of the J-pop group Morning Musume.
She participated in the Love Audition 2002 for new members of Morning Musume when she was 13.
Her trademark phrase is "Usa-chan Peace" and has said this while holding her hands above her head in a V shape to imitate rabbit ears.
She was born the youngest child in her family and has an older brother and sister.
Like her, Junjun rose to stardom in the girl J-pop group Morning Musume.