All You Get From Love is a Love Song

I'm going to be singing a song for my parents at their 25th wedding anniversary in December this year and I need to pick a song. Here's a list of what I was considering. Any input is greatly appreciated. By that I mean comments, or even suggestions for songs. Sadly, this is all I've been able to come up with at the moment. I'm looking at songs that my parents are sure to love and something that seems appropriate and that rules out a lot of songs.

Those Good Old Dreams - The Carpernters
Only Yesterday - The Carpenters
Close To You - The Carpenters
The Look of Love - Diana Krall
L-O-V-E - Nat "King" Cole
Have I Told You Lately - Rod Stewart
Fly Me to the Moon - Frank Sinatra