Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_name_18 (round VARCHAR, song VARCHAR)
### Question:
What round has this song: 陶喆、蔡依林 - 今天你要嫁给我/曹格 - 世界唯一的你?
### Answer:
SELECT round FROM table_name_18 WHERE song = "陶喆、蔡依林 - 今天你要嫁给我/曹格 - 世界唯一的你"