Super Junior-M, Super Junior's Mandopop subgroup comprising members Hankyung, Siwon, Donghae, Kyuhyun, Ryeowook, and Super Junior-M members Henry and Zhou Mi, was formed in April 2008. Although the creation of the subgroup initially created a strife between the group's fans and their management,[d] Super Junior-M went on to become Super Junior's most successful subgroup, selling out two concerts in Hong Kong, topping weekly ratings with their appearance on Chinese variety programs, and was the idol group with the most endorsement contracts in China. They won numerous awards at Chinese music festivals, and achieved critical acclaim after the release of their single "Super Girl" from their second record Super Girl, which garnered them a nomination for Best Vocal Group at the 21st Golden Melody Awards. A fourth Super Junior subgroup was created soon after Super Junior-M's debut. With five members from Super Junior-T and Yesung, they formed the subgroup Super Junior-H, releasing their first extended play (EP) Cooking? Cooking! on June 5, 2008. In November 2008, Super Junior-T made a debut in Japan, collaborating with Japanese comedy duo Moeyan. Their single "ROCK&GO", the Japanese-language version of "Rokuko", debuted at number 19 on the Oricon Daily Charts and ascended to number 2 three days later.