The Host of the Eldar is the thirty-fifth soundtrack of the Complete Recordings of The Lord of the Rings: The Two Towers.
It is used during the arrival of the Lothlórien Elves, led by Haldir, prior to the Battle of the Hornburg. The same theme is incorporated in other Elvish soundtracks, such as in the Warg-Scouts in The Hobbit: An Unexpected Journey.