So, before Yoseob debuted under the group, BEAST, he happened to be a very famous UCC star! Who knew? On BEAST fansites and various other websites, videos of Yoseob's past have been actively uploaded and gathering much attention. These videos show Yoseob dancing, singing, and doing parodies, all the meanwhile entertaining the viewers. Even before he debuted, Yoseob has been gaining popularity performing at many small concerts by showcasing diverse repertoires of dancing and singing. In the videos, Yoseob flaunts his non-rookie-like stage presence and confident facial expressions. These videos are showing a different side of Yoseob to the fans, and they are enjoying the pre-debut cutie rocking out on the stage. How big was Yoseob before he debuted? He has been on hot search topics, and was even on the TV program, 'Sponge', for his parody called 'Brother Entertainment'. Fans are expecting more of this lively Yoseob on variety shows. And here's a special treat: