I saw it on TV. Several men with robes and hoods sang this song without instrumental sound on some kind of festival. It was something like prayer. Something similar to Anuna - "Dulaman" but I think this was Latin. Help me :( sorry for my bad english.

Try some of the songs from the group 'Enigma' - I remember they had one in the 90's that was kind of a modern day gregorian chant type song...