Cary Ann Hearst has one of the grittiest voices we’ve heard.  Legitimate grit.  We first heard Hearst on her stellar song Hells Bells (which you can watch/listen to at bottom).  Hearst has since combined with Michael Trent as Shovels & Rope.  They appeared on the Letterman Show in January and have been garnering ever-growing praise.  Check out some winning vignettes below.