CREATE TABLE table_1139835_3 (grand_finalist VARCHAR, scores VARCHAR)

who is the grand finalist where scores is 8.9 (57) 7.12 (54)
SELECT grand_finalist FROM table_1139835_3 WHERE scores = "8.9 (57) – 7.12 (54)"
SELECT "grand_finalist" FROM "table_1139835_3" WHERE "8.9 (57) – 7.12 (54)" = "scores"