Lover's Concerto by The Supremes.
Perhaps Love by John Denver and Placido Domingo.
I Knew I Loved You by Savage Garden.
Beautiful in My Eyes by Joshua Kadison. Thanks to Yann V. for introducing me to such a pretty song.
Don't Laugh at Me interpreted by Mark Willis. Thanks to Sarah for introducing me to the song.
Mi Tesoro by Ramon Ayala.
Someday, I'll post some more.
Link to a page with some info and lyrics that I like: http://www.enteract.com/~nlights/lib/al_gal.htm (Thanks to my friend Bob G. for suggesting music from Renaissance.)