Need to know song name.

[gromlv]

http://www.youtube.com/watch?v=45VSgoHerEk

i need to know the name of soundtrack that is before the last song in video.
i know the original version of it,its Mozart - Lux Aeterna,buth i cant find the version of it that is played on video :/

it wold be realy nice if someone cod give me the name of it :(