CREATE TABLE table_39279 ("Dance" CLOB, "Best dancer ( s ) " CLOB, "Best score" CLOB, "Worst dancer ( s ) " CLOB, "Worst score" CLOB)

What is the dance that has priscilla presley is the worst dancer(s), and the worst score of 21?
SELECT "Dance" FROM table_39279 WHERE "Worst dancer(s)" = 'priscilla presley' AND "Worst score" = '21'
SELECT "Dance" FROM "table_39279" WHERE "Worst dancer(s)" = 'priscilla presley' AND "Worst score" = '21'