Johnny Cash is in my opinion the best country music artist ever.
His Live at Folsom Prison album (taped live at Folsom Prison) is one album that EVERYONE needs to own.
He sang "Hurt" a couple of years ago, and it became popular, identifying him to the younger generation. Unfortunately, he died months after releasing the song.
I listen to just about everything except for electronica
My brother listening to it nonstop for about a year really turned me off to most electronica except big beat. But i'll still listen to some new stuff if someone tells me its good.
On my computer, I have just about every genre of music I can think of from Latin Jazz to Classical to New Wave to Underground Rap to 60s surf music, so I think i'm pretty well versed musically.