"Locke'ing Horns" è un pezzo orchestrale della colonna sonora della quarta stagione. Viene usata per il primo episodio della stagione.
Locke has suggested the survivors go to the Barracks, but Jack has told people to contact their rescuers. Hurley tells the survivors that Charlie died trying to rescue them, and that his last message warned them against trusting their rescuers. He decides to go with Locke, and several survivors follow him.