Korean idol group Super Junior [SM Entertainment]

Korean idol group Super Junior will be releasing a teaser video tomorrow for their upcoming fourth album, according to their agency SM Entertainment on Thursday.

SM announced in a press release that the teaser video will be unveiled Friday on the group's official website (http://superjunior.smtown.com), as well as on various portals and web-based music providers.

The teaser video, as well as the release of the boys' record set for May 13, is expected to cause a stir in Korea and throughout Asia as the boy band dominated various music charts in the region with their 2009 album "Sorry, Sorry."

Super Junior -- composed of members Leeteuk, Heechul, Han Geng, Yesung, Kang-in, Shindong, Sungmin, Eunhyuk, Donghae, Siwon, Ryeowook, Kibum and Kyuhyun -- has been one of the most popular K-pop acts in Asia since their debut in 2005.

The members, some of whom have branched out to acting in dramas and musical productions, also carry out activities as sub-units Super Junior-K.R.Y, Super Junior-Trot, Super Junior-M and Super Junior-Happy.