One song I've always wanted to hear CW sing is a Welsh lullaby called "Suo Gan", and it would be perfect for Lisa. It's so beautiful, it hurts.
If you are unfamiliar with the song, I suggest you go to YouTube and search for the Charlotte Church version. It's quite good.
But maybe it's just as well I never heard Lisa sing it. I'd probably start crying, and that's not very manly.
You're not alone there...
There are quite a number of CW related songs that make me mushy. somewhere in the "Celtic Woman" section, there is actually a thread about CW songs that make us cry ....