Christmas Tree is a traditional evergreen coniferous tree that people bring home to decorate with Christmas lights, and colorful ornaments to celebrate Christmas. An angel or a star is usually placed on top of the tree. If a family uses fir trees outside the home, they may decorate it in a similar fashion. Modern Christmas trees became popular during the Renaissance in early modern Germany. A Protestant Christian reformer Martin Luther is said to have first added lighted candles to an evergreen Christmas tree. Nowadays both natural and artificial trees are used as Christmas trees, and some live ones are even sold live with roots and soil. A Holiday custom progress bar for YouTube with Smiling Christmas Tree.