"O Christmas Tree" is a traditional Christmas song that celebrates the beauty and significance of the Christmas tree. The song expresses admiration for the tree's evergreen nature, symbolizing hope and eternal life during the winter season. It is often sung during the holiday season as families gather to decorate their trees. The melody of "O Christmas Tree" is based on a 16th-century German song called "O Tannenbaum." The lyrics have been translated into many languages, making it a popular carol worldwide. The song is frequently performed in various settings, including homes, churches, and public events, contributing to the festive spirit of Christmas.