The Rappers;

Majority of KPOP groups have rappers especially boy groups. Rappers are very easy to distinguish among the other members of the groups. There are rappers that rap really fast. Let me cite some examples; they are Junhyung, Gdragon, Eunhyuk, Zico, and Zelo.  They are usually the main rappers. Usually their parts is kinda short, for they are very fast in rapping. Now, there are also rappers that have a veryyyy low yet husky voice. Some examples are TOP, Chanyeol and PO. They usually are the leads. As for the case of Chanyeol, he is the main rapper because of his fast tongue and his very y, husky, and low voice.  Next, the females, usually girl groups have only one; examples are Amber, Jiyoon and CL. Female rappers usually gives off that boyish, funkier or a hip-hoppy feels than the others.

Always keep in mind that the leads (vocalist, rapper, dancer) are the second best after the main (vocalist, rapper, dancer) in a group. Main got more challenging and harder parts than the lead. But in general, main triumphs lead.