CREATE TABLE table_72721 ("Week #" CLOB, "Theme" CLOB, "Song choice" CLOB, "Original artist" CLOB, "Order #" CLOB, "Result" CLOB)

Name the week number for andrew lloyd webber
SELECT "Week #" FROM table_72721 WHERE "Theme" = 'Andrew Lloyd Webber'
SELECT "Week #" FROM "table_72721" WHERE "Theme" = 'Andrew Lloyd Webber'