Ok Ok I know you guys can dig this up 8 wiki, but if I didn't check this in wiki, really don't know who is she.
Chiaki Ishikawa, lead vocalist of Japanese musical duo See-Saw. Many of her songs, both solo and with See-Saw, have been used as theme songs in various anime series. Mainly I know this group by from the anime "Gundam Seed / Gundam Seed Destiny" for their awesome songs such as Seed 1st Ending theme あんなに一緒だったのに(Anna ni Issho datta no ni) & S-Destiny 4th Ending theme 君は僕に似ている(Kimi wa Boku ni Niteiru).
For some reason it seems like I can't find their video for certain songs, don't know is it just me or other people also encounter such ?
& no this post doesn't contain any mp3 YET since the release date of full version is on December 3rd.
For more info about her log on to : http://www.chiakiishikawa.com/index.html