check out these websites for information about music in the 80's:
Punk Rock/ New Wave
Guns N' Roses
The Oak Ridge Boys
LL Cool J
also considered Hip Hop, but really the start of this new genre
This is almost a new genre catagory that is still it's own today, although any "popular" song of the day can be considered "pop" this has a different connotation today than in the past. This is because we associate it with the image of the artist as much as the music that they make. It's more about their stage presence and acclaim as a person than the music they make.