Wye Oak is a sort of American folk duo. Andy Stack plays drums and keys (at the same time), while Jenn Wasner sings and absolutely wails on the guitar. This is a video for their song, "Please Concrete," from their 2008 debut If Children.
If Children is great, but the new album, The Knot, writhes and burns and delights. You can read more about it in the October issue of Stereophile. I hope you will. For now, you can go to Merge and stream the entire album. I think you should. If The Knot isn't released on vinyl, I might have to kill someone. Or buy the compact disc, dammit.