Pop Music is a genre of music which features noticeable rhythmic element, melodies and also hooks. Pop music was given this name in the year 1926 as the music which had popular appeal.
The origins of Pop Music can be traced back to the year 1679. It was when Alessandro Scarlatti composed his first opera. So he can be considered as the first pop music. However, on the other hand, according to some historians, Francesco Provenzale was the first one to do it and he did it even before Scarlatti.
However, the first pop hit is considered as Slide, Kelly Slide by Edison Studios and it was released in the year 1894.