I don’t do too many music reviews, which I think is odd every time I do one. My sister pointed out Old Crow Medicine Show to me a few weeks back, and I’ve enjoyed them ever since.
5 guys from 4 different states ended playing street music in New York near each other and decided to make a go of it as a band. It’s a pretty raw back-hills bluegrass sound, with really tight instrumentation and hill billy vocals.
Several full length free mp3’s on their site, give it a shot.