Sawai Natsumi events (1999)
Some of the events that Natsumi has appeared in during the year 1999 are as follows.
| 1999.07.11 | Kira Kira Melody Gakuen Tanabata Dinner Show |
| 1999.07.24 | Tokyo Character Show 1999 |
| 1999.07.25 | Tokyo Character Show |
| 1999.08.14 | Kira Kira Melody Gakuen Manatsu no Eekoe |
| 1999.09.18 | Tokyo Game Show 99 Autumn |
| 1999.09.19 | Tokyo Game Show 99 Autumn |
| 1999.10.30 | Kira Kira Melody Gakuen Halloween Live |
| 1999.11.14 | [13:10] I'm ON Street Audition at Shibuya GIGO |
| 1999.11.27 | Kira Kira Melody Gakuen Bunkasai |
| 1999.11.28 | Kong Tong Town radio show |
| 1999.12.25 | Kira Kira Melody Gakuen Christmas Live [fanclub only] |
| 1999.12.26 | Kong Tong Town Sayonara Festival |
| 1999.12.27 | Anime Kouhaku Utagassen |