I admit when Amazon sent me the e-mail saying that I can get this for free, I was worried, because usually anything 'free' usually isn't that good.  However, I was surprised at how good Sharon Jones & The Dap-Kings are.  She, being the lead singer, has a pleasant voice, very melodic with an bit of poetic spin in it.  The song to me was sort of something between jazz and R&B, but resulting in the best of both worlds, since R&B originated from jazz in the first place.