What is the biggest Korean pop group?

The biggest Korean pop group is arguably BTS, also known as the Bangtan Sonyeondan. BTS is a seven-member South Korean boy band formed in Seoul in 2010. The group is composed of RM (leader), Jin, Suga, J-Hope, Jimin, V, and Jungkook. They have achieved global popularity and critical acclaim for their music, performances, and social activism.