Which are the most popular gregorian chants?

Question

... or songs with gregorian chants in them

Answer 1

the catholic order of mass has many traditional gregorian chants. some of these go back over 1200 years. most have fallen out of use in recent times. some popular music today incorporates or samples chanting in the background... enigma's hit 'sadeness, part 1' was one of the first. benedictine monks released a popular cd of gregorian 'chants' several years ago. for more info...