Ai Kago
In 1998, Tsunku placed Iida into subgroup Tanpopo with Aya Ishiguro and 2nd generation Morning Musume member Mari Yaguchi, and they specialized in singing slower, more mature songs. Together they made four singles and an album. After Ishiguro graduated from Morning Musume and Tanpopo in January 2000, Iida and Yaguchi performed Tanpopo songs as a duet until Tsunku placed 4th generation Morning Musume members Ai Kago and Rika Ishikawa into the subgroup. Tanpopo's style was also given a revamping, with songs being more upbeat and pop-ish, but nonetheless still slower than Morning Musume. In this formation, Tanpopo released 3 more singles, a compilation album, and a compilation DVD.