mari kamei

Top 10 longest tenures of Morning Musume

10. Fukumura Mizuki and Ikuta Erina ( 5 years, 8 months, and 5 days as of September 7th, 2016 )

9. Abe Natsumi ( 6 years, 4 months, 18 days )

8. Yaguchi Mari ( 6 years, 11 months, 11 days )

7. Yoshizawa Hitomi ( 7 years, 20 days )

6. Iida Kaori ( 7 years, 4 months, 23 days )

5. Kamei Eri ( 7 years, 10 months, 26 days )

4. Takahashi Ai ( 10 years, 1 month, 4 days )

3. Tanaka Reina ( 10 years, 4 months, 2 days )

2. Niigaki Risa ( 10 years, 8 months, 22 days )

1. Michishige Sayumi ( 11 years, 10 months, 7 days )