The singer is Sabine Dunser who sadly died in 2007, she had a great, powerful and expressive voice. The song "Heaven and Hell" is, as you probably already know, a cover from the 1980 Black Sabbath album with the same name that featured Dio as vocalist.
As for Kitty Grave I don't really have much to say except that she is from Ukraine and is a Libra. Her deviantArt page is here, apart from that, enjoy the pictures.
|Drinking of Silence|
|Feel the tree|
|Rest from war|
|My time is yet to come|
The world is full of Kings and Queens
who blind your eyes and steal your dreams
It's Heaven and Hell, oh well
And they'll tell you black is really white
The moon is just the sun at night
And when you walk in golden halls
you get to keep the gold that falls
It's Heaven and Hell
See you all next week