National because it refers to an entire country
<span>A musical style characterized by a short, repetitive melody that is easy to sing along with is pop music. Pop music originated in the 1950s and sprang from rock and roll. It is known for its eclectic, short, and basic format. It consists of repeated melodies, choruses, and hooks. Hooks are short phrases used in pop music to make it catchy.</span>
Wow! That was a really nice poem! I don't know where there was a question in that but that's okay! Great job on your play with words!
~Kweenie~
The artist you are trying to describe is Bo Diddley.