Our Lady of Guadalupe Liturgy

December 12 is the feast day for Our Lady of Guadalupe, Spanish Nuestra Señora de Guadalupe, also called the Virgin of Guadalupe, in Roman Catholicism. It is a celebration, with much fanfare, of the Mother of Jesus, the Virgin Mary’s, appearance before St. Juan Diego in a vision in 1531. The name also refers to the Marian apparition itself. Our Lady of Guadalupe holds a special place in the religious life of Mexico and is one of the most popular religious devotions. Her image has played an important role as a national symbol of Mexico. 

Here is a short video and it's description Our Lady of Guadalupe