For those of you that haven’t heard about or seen Walk Off the Earth, go over to YouTube and have a look at their videos. They are a rock band from Canada, and are known for being able to play a wide variety of instruments, and using their talents to do covers of popular music. They do write their own music as well, but some of their best stuff is from other artists. I recently found their version of Royals on YouTube, which I actually prefer to the original artist (Lorde).
If you’ve never seen them before, you should also watch the video below. It is their cover of Somebody That I Used To Know, and has contributed massively to their popularity with over 150 million views on YouTube.