I love listening to country music, which comes from blues, but don't know much about it.
Oh yeah? What do you find most interesting about country music? 
I love the folk lyrics and the banjos and acoustic guitars.  Do you enjoy it?
I enjoy some folk music, and some bluegrass stuff, but I cannot STAND modern country music. It's just too pop-ish for my taste. 
Yes, popular music has an effect on our global culture, and that includes country crossover music.
What is country crossover music?
It's where performers try to appeal to more than one audience, by "crossing over" into another type of music.  The modern country music you refer to does this.
Oh! I see. That's interesting. I bet the effect that that type of music making has a major effect on our global culture. 
Yes.  The music of the US reflects our multi-ethnic population.
That makes sense. I bet that's why so many types of music make it to the top charts.