Some of the events that Mieko has appeared in during the year 1999 are as follows.

1999 03.21	Tokyo Game Show Spring 1999
1999 06.27	Digi Chara Festival II
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 09.25	Kira Kira Melody Gakuen mini live
1999 10.16	Cospa 5th Anniversary in Velle Farre
1999 10.30	Kira Kira Melody Gakuen Halloween Live
1999 11.06	Tokyo Denki University Nishiki Festival
1999 11.10	Idol Chui at Take Off 7
1999 11.14	Kong Tong Town radio show
1999 11.27	Kira Kira Melody Gakuen Bunkasai
1999 12.18	Kong Tong Town radio show
1999 12.19	Heart Chu signing session at Toranoana Ikebukuro
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
1999 12.27	Anime Kouhaku Utagassen Uchiage Daihousou Party