Super Junior M Debut And Commercial Success

Super Junior-M debuted in Beijing on April 8, 2008 at the 8th Annual Music Chart Awards, simultaneously with the release of their first music video, "U" on Sohu.com.They released their debut album Me in selected provinces of China starting April 23, 2008. A Korean version of the album with three bonus Korean-language tracks was released in South Korea on April 30, 2008. A modified version of the album was released in Hong Kong, Singapore, and Taiwan on May 2, 2008.Though a majority of the tracks in the album were Mandarin remakes of Super Junior's previous Korean hits, reviews were generally positive. Hong Kong Cantopop singer, Hins Cheung, critiqued the album favorably, saying that the album contains "international-level music" and that the group is "vocally-talented".
A month after their debut, Super Junior-M won their first award, Asia's Most Popular New Group, at the 5th annual Music King Awards in Macau on May 25.took home another three awards that year. On December 27 and 28, Super Junior-M held their first concert, the Super Junior-M Show, in Hong Kong.
Following their debut performance in April 2008, the group made a few successful guest appearances in many chains of entertainment variety shows to promote their album. They appeared in an episode of the second season of TVB and HunanTV's collaboration show, Strictly Come Dancing, which made the show's ratings increase to 5.01%, ranking it the third most watched show ever in all of China.Super Junior-M's appearance in the talk show Behind Story also increased ratings. The show had the highest ratings during their time slot, with a strong 4.05%. Separated into several weekly episodes, the group's appearance in their first episode on the challenging game show Bravely Going Forward in early August gave the show the highest ratings during that time slot as well. In August 2008, Han was casted in the idol television drama Stage of Youth, a mini-drama dedicated to the 2008 Beijing Olympics. Han portrayed Xia Lei, a youth who aspires to be a famous dancer. Other members of Super Junior-M gave cameo appearances in the final episode.
In September 2009, Super Junior-M released their album album, the EP Super Girl. The album garnered them a nomination for Best Vocal Group at the 21st Golden Melody Awards.The EP's title single "Super Girl" is Super Junior-M's most critically successful song to date, winning numerous accolades for its composition and performances.
2010–present: Lawsuit and lineup changes
In December 2009, Han filed for contract termination from SM Entertainment, claiming that the provisions of his contract were unlawful, harsh, and against his rights.Super Junior-M immediately canceled all of their future activities and performances in China and Taiwan. They returned to Korea to begin preparing for Super Junior's fourth studio album. Han, however, stayed in China and signed under a new management, releasing his debut solo album Geng Xin in July 2010.Although Super Junior-M remained largely inactive for most of 2010, they won several accolades for their song "Super Girl" at China's 2010 MusicRadio TOP Awards, including Most Popular Group, Golden Melody Award and Best Composition.
In December 2010, the Seoul Central District Court ruled in favor of Han. However, SM Entertainment announced that they will file an immediate appeal to reverse the decision. In September 2011, Han and SM Entertainment officially came to a mutual agreement regarding Han's contract, closing the case. Although Han will not continue his exclusive contract with SM Entertainment, the agency has yet to release an official statement regarding his status in Super Junior and Super Junior-M.