Elvis Presley in the Ed Sullivan's show sung a traditional pop music such as Love me tender, Love me, and Hound dog. It was his first appearance on the show and it was a major success. Many people both young and old watched it. His appearance on the show had helped bridge the generation gap for his acceptance into mainstream.
That depends, about what ?
Itunes has made pop music more exciting because now we get to pay for our favorite music. so has radios for long car rides. also youtube which has made us see any needs or videos we want.
I'm a bit confused my guy.

Yes, We can say so. It is because of the geographical origin as well as ancestral origin of all the southeastern countries of Asia. You might have seen them adjacent to each other.
Let me give an example. Cambodian court music is somewhat similar to that of Java, Indonesia. It features choruses with large orchestras based on stuck keys and gongs. Similarly, there are several more such similarities in their instruments and way of musical celebrations.