Exeloume!
Exeloume, the song by Diamanda Galas (voice of Dracula's brides) which is used during the final chase sequence at the end of Bram Stoker's Dracula was sadly omitted from the official soundtrack recording, but you can hear it here, set to footage from an equally breathtaking film, Baraka.
I'd been searching for this track online for quite awhile now!
Click to view