CREATE TABLE table_203_877 (id DECIMAL, "year" DECIMAL, "single" TEXT, "us cashbox" DECIMAL, "us hot 100" DECIMAL, "uk singles" DECIMAL)

which single spent the least amount of time on the us hot 100 ?
SELECT "single" FROM table_203_877 ORDER BY "us hot 100" LIMIT 1
SELECT "single" FROM "table_203_877" ORDER BY "us hot 100" NULLS FIRST LIMIT 1