OK, chances are you've heard of Birdy. She did that amazing Bon Iver cover that went super viral, etc, etc. But have you heard her other music? Because it's amazing too, and doesn't get as much love it should IMO.
Oh, Keaton Henson. How do I love thee? Let me count the ways: 1) He has a voice that will make you weep. 2) His lyrics are poetry that will also make you weep. 3) I like his beard even though I hate all beards, but seriously just look at it, that's a good beard.