2009  SBS   Gayo Daejeon  award ceremony which was held on December 29, 2009. [ 4 ]  Yong Hwa temporarily replaced  Tiffany  &  Yuri  of  Girls' Generation  as co-host MCs for  MBC 's  Show! Music Core  episode to be aired on May 29, 2010 together with Min Sun Ye and Kim Yoo