As I hate having to resize anything, I'll link
Bansheechoir.jpg picture by AaronShadows - Photobucket
Taken from the lady's necklace quest chain event, where lady sylvanas starts singing in a fit of memories about her life as the ranger general and her sisters, Alleria and vereesa. Currently, Vereesa is in northrend and alleria is either dead or still alive somewhere very far away.