Lee Joon Ki made a surprise appearance during IU's solo concert tour in Taiwan on Satuday, January 7th. Immediately after she finished singing, the actor entered the stage to the excitement and delight of the fans who recognized his silhouette. Shortly after she finished singing, Joon Gi made a surprise entrance on stage. He was then met with immense cheers and excitement from fans who recognized him by just his silhouette.

The excitement grew in the audience when IU and Joon Ki re-enacted the romantic rain scene from Scarlet Heart: Ryeo! He even performed one of the songs, "For You", from the popular drama.

You can watch the clip below: