Best: "Into the West" ('The Lord of the Rings: The Return of the King,' 2003)
Think of this as the Sméagol to the Gollum of "My Heart Will Go On." Like that titanic track, "Into the West" is the climactic power ballad of a three-hour-plus, billion-dollar-grossing epic, created as a collaboration by a respected film composer and an established pop star with serious vocal chops. But where "Heart" steamrolls, "West" soars and soothes. Co-written Fran Walsh (co-screenwriter of the Rings films), composer Howard Shore and Eurythmics alumna Annie Lennox, it builds to its bittersweet high notes with true Tolkien-ian splendor.