On May 8, 2011 manager Hyeongjin tweet a photo of Youngsaeng while shooting his music video for single “Let It Go”.
He said that the photo is taken from the MV set with Choi SungWook as the MV Director. Hyeongjin manager-nim also asked us to wait as it will be a big hit!
Here’s the tweet caption !
Source : Hyeongjin manager twitter