Actor Jang Geun Suk reveals how he went in a dance frenzy in front of dancing king Rain! On September 7th, Jang Geun Suk appeared as a guest for MBC's 'Knee Drop Guru' for the Chuseok special. During this time, Jang Geun Suk revealed his friendship with Rain and the event that happened during Rain's concert in Busan. Jang Geun Suk stated, "Towards the end of the concert, the energy inside me was going to explode. Everyone around me was standing up and dancing. So, I also stood up and shuffle danced until I was sweating." Continuing, "While I was dancing, someone proposed that I go up on stage. I quickly said 'yes'," and stated how he stood on the same stage as Rain. Concluding, Jang Geun Suk stated, "To think about it, I stood in front of the world dancing king and said 'I am the shuffle king'. I bet Rain-hyung first thought I was doing well but later, I bet he thought 'What the heck is he?'. Also on this day, Jang Geun Suk personally introduced the shuffle dance to the viewers. Source: TV REPORT