The second wave is Korean idol singers, such as TVXQ!! , SS50 1, Super JUNOR, these combinations.
The third wave is the new idol groups in South Korea in recent years, such as boyfriends, Shniee, Beast and Infinite. U kiss.
In fact, Korean entertainment circles are very ambitious. Although it is still one of the directions to enter the China market, its target is not only Asia, but also European countries. They want to cultivate world-class idols, just like LADY GAGA. Therefore ... artists work hard, are under great pressure, and the life span of the group is not long. In South Korea, even China learns from South Korea as an idol group.
All the above are my personal opinions. If any fans are not satisfied, please give me more advice. These levels are roughly divided and may not be correct. I hope it helps you!
thank you