Sons of Anarchy.
Many friends recommended it to me but I was like "since everybody loves this, it must be crap". Shows what I know
I love this series for a variety of reasons (though I only just finished season3 and I heard it's not that good later on) but the main one is music. It's mainly covers (or only covers) with immortal hits like "House of the Rising Sun", "Son of a Preacher man", "Gimme shelter" and "John the Revelator" in the best versions I've heard. I'd write more but you have to listen to it yourself.
Yac.