Super Junior - K.R.Y is a trio which was formed from Super Junior members KyuHyun, RyeoWook, and YeSung. They have participated in the Original Soundtrack of the tvN Drama Hyena with a total of three tracks, including the main theme. The trio is part of SM Entertainment's strategy to not limit Super Junior’s activities; the goal of this strategy is to show that Super Junior can do more than just singing one kind of genre of music but a whole range like pop, dance, ballad, trot, etc. (explained more in next paragraph) K.R.Y.'s first official performance was on November 4th on KBS's "Music Bank" and have been showing live performances only ever since[citation needed]. In addition, many of the members have appeared on variety shows individually, while others have hosted radio shows; three of the members continue to host Mnet's M!Countdown.
At some concert appearances, the members have been witnessed sectioning themselves off into smaller-groups, and each performing its own set of songs. There causes speculation that the group's strategy is to actively target particular musical tastes. As these smaller groups are rarely permanent, with the exception of K.R.Y, the constantly shifting makeup of these groups is able to target as many possible "tastes", and by evaluating which groups were well received, a clearer evaluation of the market tastes is possible and obviously these groups will enjoy reappearances in later Super Junior concerts. A case in point is K.R.Y. Each member has developed a particular persona and subsequent fan-base, the label has decided grouped those members sharing similar qualities and having them perform particular songs to target a particular audience. The members of K.R.Y, for instance, are amongst the most vocally powerful of the members of Super Junior, and have developed a marketable style as the mournful ballad singers (a style that has proven very popular in recent years, although stagnation in the style's development is causing it to lose its once fresh evocative power).
Super Junior T(rot)
In early 2007, another spin off group, named Super Junior T (for trot), was created, the members are currently Leeteuk, Heechul, Kangin, Shindong, Sungmin, and Eunhyuk. They released their first single, "로꾸꺼" (Rokkukkuh, the word "backwards" literally written back to front) to mainstream radio February 23. Although the single has been successful, members were initially wary of the concept, fearing that their young fanbase would reject music that is typically geared toward an older crowd.
In April 2007, six members, YeSung, KangIn, SungMin, DongHae, RyeoWook, KyuHyun were featured in the OST of the MBC drama H.I.T. with two new songs: H.I.T and Success.
