IU's backup dancer for "Good Day", Lee Jae Yeon, has become a professor in Practical Dance. According to a statement through the Seoul Art College on the 22nd, Lee Jae Yeon "has been appointed as an adjunct professor for Practical Dance". Famous for being a look-a-like of actor Bong Tae Kyu, Lee Jae Yeon has been working as IU's backup dancer since November of 2009. Lee Jae Yeon is also the main dancer for the dance team, Nana School, performing at concerts for 4minute, TVXQ, Lee Hyori, Seo In Guk, and various other concerts and shows. Source; Xports News via Nate