Youtube cover gods

So quite recently I have found myself watching a whole lot of Cobus covers, I will post a link to his Youtube in a min so you can all see). I came to wondering after seeing his recent vlog....who on youtube would make a good cover band with him. So my question is: Who is the "best" youtube cover...iers(?) of other typical band instruments(i.e. Guitar, Bass....lets skip singers cause there is alot of people trying haha, and anymore you may want to add).

Here is some amazing covers to listen to