Just found out that she's Tasha gee some months ago. So no, I didn't know before and don't have anything, but listened to some stuff.
Here for example, you can find some on youtube.^^
WILL is actually a Tasha gee song, the one on the album is a new version.
So, from what I heard, Tasha gee and Gille aren't that much different in sound. She probably just changed name for her "new start".