You might find this surprising but I listen to Dolly Parton now and then. "Jolene" is one of my favorites. She's amazing.
I first heard the song when the White Stripes covered it. I love all the emotion he puts into the song.
If you ever get a chance to see The White Stripes live...do it. I've seen them twice and Jack White is a God on the guitar. It's incredible to watch.