CREATE TABLE table_26368 ("Week #" CLOB, "Theme" CLOB, "Song Choice" CLOB, "Original Artist" CLOB, "Order #" FLOAT, "Result" CLOB)

In what week was the original singer Whitney Houston.
SELECT "Week #" FROM table_26368 WHERE "Original Artist" = 'Whitney Houston'
SELECT "Week #" FROM "table_26368" WHERE "Original Artist" = 'Whitney Houston'