CREATE TABLE table_204_365 (id DECIMAL, "year" DECIMAL, "single" TEXT, "chart positions\ usa billboard hot dance club play" DECIMAL, "chart positions\ polish charts" DECIMAL, "album" TEXT)

what was the name of natalia lesz 's first single ?
SELECT "single" FROM table_204_365 ORDER BY "year" LIMIT 1
SELECT "single" FROM "table_204_365" ORDER BY "year" NULLS FIRST LIMIT 1