I have posted the original Somebody That I Used To Know before. The original is with Gotye. And the video is definitely worth watching.
This is Walk Off The Earth and Sarah Blackwood. And their version, not to mention collaboration, is quite neat too.
this cover is very cool too! found it right after i searched for wote.
i think the band is from toronto as well.
http://youtu.be/Twig1OuLmgE
quite funny.