Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_41971 ( "Week #" text, "Theme" text, "Song choice" text, "Original artist" text, "Order #" text, "Result" text )

### Question ###
What Week # that is there an Order # of 7, and the Song choice was ' let it be '?

### Accurate SQL ###

SELECT "Week #" FROM table_41971 WHERE "Order #" = '7' AND "Song choice" = ' let it be '