Welcome home to Chris Hadfield. Here's a link to his favorite songs:
http://www.asc-csa.gc.ca/eng/mission...s-hadfield.asp
"If You Could Read My Mind" by Gordon Lightfoot (C)
Lightfoot wrote so many beautiful, iconic Canadian songs, but for me this one is the favourite. It combines a lilting melody and such thoughtful lyrics. I've loved it as long as I can remember.