CREATE TABLE table_24423 ("Week #" CLOB, "Theme" CLOB, "Song choice" CLOB, "Original artist" CLOB, "Order #" CLOB, "Result" CLOB)

What week #(s featured sara bareilles as the original artist?
SELECT "Week #" FROM table_24423 WHERE "Original artist" = 'Sara Bareilles'
SELECT "Week #" FROM "table_24423" WHERE "Original artist" = 'Sara Bareilles'