Groo Super Junior member Choi Siwon celebrates Yesung's birthday at the 2019 K World Festa closing ceremony photo wall event held at KSPODOME in Seoul, Songpa-gu, on the afternoon of 24 Days.
About Yesung
Kim Jong-woon, better known by his stage name Yesung is a South Korean singer, songwriter, actor, radio personality and television presenter.
 Wikipedia