CREATE TABLE table_24431 ("Week #" CLOB, "Theme" CLOB, "Song choice" CLOB, "Original artist" CLOB, "Order #" CLOB, "Result" CLOB)

Who is the original artist with a theme of N/A?
SELECT "Original artist" FROM table_24431 WHERE "Theme" = 'N/A'
SELECT "Original artist" FROM "table_24431" WHERE "Theme" = 'N/A'