Usually there’s only 1 main vocals but these K-Pop groups have 2 or even 3 main vocal members.
In most K-Pop group, specifically in the vocal category, the agency will arrange 1 main vocal, and the number of lead vocal and sub vocal depends on the number of members. However, with the rising trend of crowded K-Pop groups, an idol group with 2 or more main vocals is no strange thing anymore.
2 main vocals from the same group will usually have 2 different tones to support and harmonize with each other during hard lines of the song. Depends on their tone, each main vocal will be given the appropriate line to deliver the song in the most perfect way. Some of the most famous main vocal duos in idol groups are Taeyeon and Jessica (Girls’ Generation), Sunggyu and Woohyun (INFINITE), JB and Youngjae (GOT7), Taehyun and Seungyoon (WINNER), Onew and Jonghyun (SHINee), Jay and June (iKON), Seungkwan & DK (SENVENTEEN), Leo and Ken (VIXX), Yeunjung and Sejeong (I.O.I), Sungwoon and Jaehwan (Wanna One),…
Aside from the groups above, K-Pop also have even more impressive groups with 3 main vocal members such as EXO with Chen, D.O. and Baekhyun, NCT 127 with Taeil, Doyoung and Jaehyun, Super Junior with Yesung, Ryeowook and Kyuhyun. Through this fact, it can easily be seen that SM also owns a lot of talented idols with extraordinary vocal skill, not just some pretty faces like some once thought. Also, the agency is not afraid to add many good vocal members into the group to raise the standard singing skill of an idol group.