Las Posadas is a nearly 400-year-old Mexican Christmas tradition in which a child dressed as an angel leads a procession including a couple dressed as Joseph and Mary (pregnant with Baby Jesus) seeking shelter each night for eight days. The procession may include a Nacimiento (nativity), as well as caroling, food and often a piñata for children afterward.

Carrillo Communications and Creative Arts Magnet School, 440 S. Main Ave., in Tucson, has hosted the procession since 1937.