CREATE TABLE table_204_500 (id DECIMAL, "year" DECIMAL, "title" TEXT, "peak chart positions\ us country" DECIMAL, "peak chart positions\ us" DECIMAL, "album" TEXT)

which album produced the most singles ?
SELECT "album" FROM table_204_500 GROUP BY "album" ORDER BY COUNT("title") DESC LIMIT 1
SELECT "album" FROM "table_204_500" GROUP BY "album" ORDER BY COUNT("title") DESC NULLS LAST LIMIT 1