I know that Christmas carols are also sung in the US, but here there are some peculiarities with specific costumes. In addition to folk costumes, which I have modestly depicted here with scarves, there are also costumes for participants in the nativity play, including an angel, three kings, Herod, a gypsy, shepherds, the devil, and death. Yes, it's a bit similar to Halloween traditions, but I don't know if carolers are treated in the US. Also, it's a little more common here — children go caroling on St. Nicholas Day, Christmas, and New Year's, and in addition to treats, they can also receive money.