If you follow the folk and alt-country crowd, as I do, then you already know Mandolin Orange. From their latest album, This Side of Jordan, here is a fine performance on Audiotree Live:
You can watch the whole set at the Audiotree website. It is excellent from beginning to end, with bits of interview in-between.
They also did a set with Folk Alley Sessions. In particular, I recommend “Darling Girl,” which reminds me of Bob Dylan’s “Girl from the North Country.” Also, “Waltz About Whiskey” is another favorite of mine.