Killing the Blues

Popularized by John Prine and also recorded by Shawn Colvin, as well as its original writer, Rowland Salley, "Kiling the Blues," with its laid-back melody and poetic verse, was cherry-picked by Robert Plant and Alison Krauss to be the linchpin of their collaborative project. "When you combine a melody that lifts you up with a lyric like that, it's a twisted thing," said Krauss. "When you get that combination that is really something."