Previously, actress Jo Yoon Hee was cast as a brand new, fixed MC of KBS2's 'Happy Together 4'. It will mark her first ever time challenging MC-ing on a variety program. 

In order to support his wife first day as the new 'Happy Together' MC, Lee Dong Gun will be attending her first recording on December 8 - the couple plan on sharing with viewers moments from their married life, life as parents, and more. 

Meanwhile, 'Happy Together 4' airs every Thursdays at 11:10 PM KST.