The K in K-pop stands for “Korean”. K-pop, is what we call pop music produced in Korea.
More precisely, in South Korea, where this sort of music appeared in the early 1990s.
K-pop is a mix of several different styles: pop, electronic, R&B, hip-hop, dance and rock.
Mostly, the groups are boy bands or girl bands; mixed groups are rare.
Each group has 2 singers, 2 rappers, 2 dancers, a star – the best looking boy or girl –, a maknae – the youngest –, and finally, a leader.