What is the name of the song in LOTR- the Return of the King where Eowyn is being healed by Aragorn?

This is the scene right after 脡owyn kills the Witch-king, and is wounded. Aragorn is healing her, and there is music playing. I have all the soundtracks to the Lord of the Rings trilogy, but this song did not come up. I have a feeling it is by Enya, but I'm not sure at all. If anyone can help me out it would be greatly appreciated. Thanks :]

OK, was curious because i like the music in the movies, but had to look it up - the official website says it is Arwen's Song "featuring" Liv Tyler...guess that means she sang it?

Under Aragorn鈥檚 care, 脡owyn recovers in the Houses of Healing. 鈥淎rwen鈥檚 Song鈥?acts here as an Elvish blessing鈥攁n ethereal prayer for the suffering. Arwen, too, is somewhere in Middle-earth, just as lovelorn. 鈥淎nd the trees are now turning from green to gold/And the sun is now fading鈥︹€?And yet, there is still hope. Faramir has also recovered in the Houses of Healing. He smiles at 脡owyn. 鈥淎rwen鈥檚 Song鈥?continues, 鈥淚 wish I could hold you closer.鈥?br>
ARWEN鈥橲 SONG
Text by Fran Walsh
FIRST HEARD: DISC THREE | TRACK ELEVEN
With a sigh you turn away
With a deepening heart no more words to say
You will find that the world has changed forever
And the trees are now turning from green to gold
And the sun is now fading
I wish I could hold you closer

The first poster is correct, and Liv Tyler did sing that song. It's called "The Houses of Healing", though, and not "Arwen's Song". It's also only found on the "The Lord of the Rings: The Return of the King: The Complete Recordings" cd set.