CREATE TABLE table_76716 ("Week" CLOB, "Theme" CLOB, "Artist" CLOB, "Order sung" CLOB, "Status" CLOB)

What artist's song was performed in the week with theme of Billboard #1?
SELECT "Artist" FROM table_76716 WHERE "Theme" = 'billboard #1'
SELECT "Artist" FROM "table_76716" WHERE "Theme" = 'billboard #1'