CREATE TABLE table_4149 ("Couple" TEXT, "Week 1" FLOAT, "Week 2" FLOAT, "Week 3" FLOAT, "Week 4" TEXT, "Week 5" TEXT, "Week 6" TEXT, "Week 7" TEXT, "Week 8 Final" TEXT)

Which couple had a week 2 score of exactly 23?
SELECT "Couple" FROM table_4149 WHERE "Week 2" = '23'
SELECT "Couple" FROM "table_4149" WHERE "Week 2" = '23'