加護亜依
In June 2000, Morning Musume 4th Generation members Rika Ishikawa and Ai Kago joined Tanpopo, making the two-member group a four-member group. The style of their songs changed also when the four released "Otome Pasta ni Kandō." The style of this song became analogous to the songs Morning Musume had released. They also used this style on their next singles, which became popular and reached the number one spot on Oricon, and their second (and last) album.