Korean boy-bands are groups of boys that sing and dance together. They usually have a leader who does most of the singing, and the other boys who dance and sing along too. While there are some solo singers, most of the popular singers and groups are boy-bands. Some of the most popular boy-bands in Korea include EXO, BTS, and Got7. They all have different styles of music, different members and choreography. Fans of these boy-bands often go to their concerts, buy their merchandise and follow their social media accounts.