Who else sings/plays the song "Crazy" by Gnarls Barkley
 

Ok, so I have been searching for a couple hours for this one musician. It's been over a year since I listened to the guy so I don't remember his name and I only listened to two of his songs. He plays a cover of "Crazy" by Gnarls Barkley and I do not remember the other song I listened to. It is not Ray LaMontagne, though I believe they may sound similar. He also has a music video of him playing "Crazy" that is very simple. It is only him in (if I remember correctly) a white room with his guitar and the camera just kind of zooms in and out in different places. I also believe he is younger than 20 in the video. Also, I believe he is European. If anyone can help me with this, I will be very grateful.