Ai Kago
Yoshizawa became a member of the Hello! Project group Morning Musume in 2000, as a member of the fourth generation along with Rika Ishikawa, Nozomi Tsuji, and Ai Kago, making her debut in the group's ninth single "Happy Summer Wedding". She was also featured in the group's theatrical release of "Pinch Runner". She also appeared with the group in the weekly television show "Hello! Morning" in various segments including a survival match featuring the members of the 5th and 6th Generations where she played the role of the referee.