The 12th day of Christmas is a traditional Christmas carol that celebrates the 12 days of Christmas, which begin on Christmas Day and end on January 5th. The song is based on a traditional English counting rhyme and typically includes 12 verses that correspond to the 12 days of Christmas. Each verse describes a different gift or tradition associated with the holiday season, such as partridges in a pear tree, calling birds, French hens, and so on. The song is typically sung as a round, with each person singing a different verse at different times throughout the song.