Can't stop listening to Scala & Kolacny Brothers, a Belgian girls' choir conducted by Stijn Kolacny and arranged and accompanied by Steven Kolacny on the piano.
If you like choir music + moody/semi-creepy music, you'll love this. Trust.
http://www.youtube.com/watch?v=EUr5LMYYtM4
http://www.youtube.com/watch?v=I_is1iyUDJ8&feature=related