Her name is Rachael Chatoor. Her Web site is here. Her blog is rachaelpachelwasmyname. Both are well worth a visit.
She calls this first video a rough draft of an original song that's about to be released on a compilation CD from Stupid Cancer. You can here the final arrangement by clicking on the widget in the sidebar.
On her blog she says she doesn't think of herself as a recording artist. I predict that's going to change.