Holy cow, I wish I had discovered the FMA (http://www.freemusicarchive.org) a long time ago! I just checked out their charts, and it appears that there are tons of fantastic Canadian artists with live versions of songs on there!
There’s K’Naan, Tegan and Sara, Feist, Islands, You Say Party! We Say Die!, and way more. It’s crazy. Check it out for yourself when you have time.