K-pop groups are musical ensembles from South Korea that perform a blend of pop, hip-hop, R&B, and electronic music. These groups typically consist of several members, often ranging from four to twelve, who sing, dance, and engage in various entertainment activities. Each member usually has a specific role, such as lead vocalist, rapper, or dancer, contributing to the group's overall performance. K-pop groups are known for their visually striking music videos, elaborate choreography, and dedicated fanbases, often referred to as fandoms. Popular groups like BTS and BLACKPINK have gained international recognition, helping to spread the genre beyond South Korea and into global markets.