JUST START THE MUSIC

Super Junior , often referred to as SJ or SuJu , is a boy group from South Korea formed by SM Entertainment in 2005. With a total of 13 members, they are one of the largest boy bands in the world. The group consists of Leeteuk, Heechul, Han Geng, Yesung, Kangin, Shindong, Sungmin, Eunhyuk, Donghae, Siwon, Ryeowook, Kibum and Kyuhyun.  In 2010, only 10 members are active, due to Han Geng leaving SM Entertainment, Kangin's leave of absence for mandatory military service and Kibum's pursuit of an acting career.

As a whole, Super Junior has released four studio albums and one physical single, including occasional contributions to drama soundtracks.Super Junior are known for doing performances that are heavily centered around their choreography, and are acclaimed for their highly synchronized dances. 

Since debut, SM Entertainment has created four subgroups for Super Junior. Every member was put into different subgroups excluding Kibum, due to his busy acting schedule. The intentions of the subgroups were part of SM's strategy to not limit Super Junior's activities, and the goal was to show that the group could accommodate different musical genres. 

Super Junior-K.R.Y, established in November 2006, is a trio formed by Kyuhyun, Ryeowook, and Yesung which makes up K.R.Y.in the title of the group. Being amongst the most vocally powerful members of the group, Super Junior-K.R.Y are credited to singing mournful, R&B-style ballads. Unlike Super Junior's other subgroups, Super Junior-K.R.Y has not officially released a single or album, and only participated in collaboration albums and original soundtracks. 

 Super Junior-T  is the second official subgroup of Korean boy band Super Junior. They are the first idol group known for capitalizing trot music, the oldest form of Korean pop music. Super Junior-T contains six Super Junior members, Leeteuk , Heechul, Kang-in, Shindong, Sungmin, and Eunhyuk.

The group released their debut single "Rokuko" on February 23, 2007 and on February 25, 2007, they officially debuted on SBS's Popular Songs.By the end of 2007, the single sold almost 46,000 copies and was Korea's best-selling single of the year.

Two months later, Leeteuk, Shindong, and Eunhyuk were injured in a car accident, and all of Super Junior-T's schedules were completely canceled for two months.On April 29, 2008, it was announced that Super Junior-T would make a comeback later in the year with their second single.

However, a fourth Super Junior sub-unit, Super Junior-Happy, debuted instead, putting Super Junior-T in partial hiatus.

Well,this is the end of part 1. To be continued ^^