Zac Brown Band. I have a bunch of their songs on Rhapsody and I'm listening on shuffle.
I took my F to see them on Friday, for his birthday. And they were AWESOME. It was a great show. Easily makes my top 3 of all time.
1) Jimmy Buffet
2) Meatloaf (weird, I know--but damn does he put on a hell of a show!)
I highly recommend seeing them if they come to a city near you. We had such a good time!!!