If H.O.T, Crystal Boy and FL. K is the top combination in Korea, followed by SS50 1 and TVXQ!! It is the second generation of Korea. Moreover, the top two combinations in Asia are Dongtuan and SS50 1, which is certain, but don't compare Dongtuan with SS50 1, because it is unfair compared with Dongtuan's SS50 1 which debuted two years later, and genre and dance are not of the same nature at all. But they are all very powerful, 50 1 is not worse than Dongtuan.