Can anyone tell me the name of the song (and it's composer) that the choir is singing in this commercial?

http://www.youtube.com/watch?v=1mR8-xoDbLg

I'm guessing it could even be a modern piece, but for some reason, it strikes me as a Baroque piece, possibly Bach or Handel. Maybe even a Requiem by Mozart or Verdi?

After a little searching, it's actually bits of "Lacrimosa" from Mozart's Requiem in D Minor.