Short for Korean pop music. Here's a list of what Kpop really is.
1. Heavily influenced by American music. 99% of the Kpop songs have at least a few lines of American English lyrics. Sometimes they fail at English so some lyrics don't make sense at all.
2. Most Korean males who listen to Kpop (such as girls' generation) listen to them because of hot/cute girls in the group.
3. It is surprisingly common that Korean males collect pictures and posters of those cute girls in one of the Kpop groups Girls' Generation and mostly each of them has 'favorites'.
4. Most Kpop songs are shitty and unoriginal but that's not why people listen to them. It's about those hot dancers and girls in those groups.
When I went to the Korean Army, I could see posters and pictures of girls in Girls' Generation and other groups everywhere. yeeee kpop!