Te Deum
Traditionally, the Te Deum is sung on New Year’s Eve in anticipation of the New Year. This chant will be sung at the end of Mass on New Year’s Eve at 5:15 p.m.
The Te Deum is also include in the Office of Readings on Sundays and on special solemn feasts including the octave of Christmas and the octave of Easter.
Here is the Latin Gregorian chant form and the English translation.