Beautiful lyrics. Beautiful voice.
http://www.youtube.com/watch?v=7Jr-2eyRtV4
My daughter solo'ed singing Mozart's Laudate Dominum her freshman year in college for their Holiday Choir concert. I cried listening to her sing.

It became an instant favorite of mine.

This clip is obviously not her, but she did a super job.
http://www.youtube.com/watch?v=8iyxRGzdoFk