The Song of Gondor was sung by Aragorn on his quest to rescue Merry and Pippin from the Orcs. He sings it after the death of Boromir (who perished at Amon Hen whilst battling Uruk-Hai), and it showcases his great regard for Gondor. It is unknown whether or not the song is a common one amongst the Men of Gondor, or whether Aragorn developed it himself.