Super Junior M

Responding to Super Junior’s rising popularity in Mainland China, Super Junior’s management, SM Entertainment, decided to compose a new Super Junior sub-unit that is to focus entirely on the Chinese market. On October 2, 2007, an official announcement was released to the media, stating the birth of a third Super Junior subgroup that would debut in China in 2008. Super Junior’s original member Han Geng, and an SM Chinese trainee, Henry, were stated to be the first two of the seven members representing the subgroup. Five months later, a second Super Junior member, Siwon, was mentioned in news articles to be the third member. However, the confirmed list of members were not released to the public until April.

Starting from April 4 to April 7, 2008, the seven members were individually released to the media in a chain of short trailer clips. Han Geng was the first member to be announced on April 4. On April 5, Siwon and Donghae were announced to be the second and third members. On April 6, Kyuhyun was announced to be the fourth Super Junior-M member, following a new member Henry as the fifth. Ryeowook was announced to be the sixth member on April 7 followed by Zhou Mi as the final member. A trailer of all seven members was released on the group’s debut day, April 8. Super Junior-M’s trailer clips exceeded 1.4 million views in less than four days, garnering interest in both the Chinese and Korean audiences.