Following in the footsteps of TVXQ's Xiah Junsu and fellow SNSD member Jessica, Taeyeon will be making her musical debut through The Sun's Song, a Korean adaptation of a Japanese novel Midnight Sun. Taeyeon has been cast as Kaoru, the main female lead who is diagnosed with a disease called Xeroderman Pigmentosum that makes her sensitive to sun exposure. Her character falls in love with a guy who practically lives under the sun because he loves to surf. Taeyeon's singing abilities have been proven time and time again; however, there is much anticipation to see how she will fare in the acting department. A rehearsal clip capturing Taeyeon as well as the rest of the cast busily practicing a segment of the routine was released online. In the video, Taeyeon also promoted The Sun's Song by asking for many people to come and watch the musical.

Hi, my name is Taeyeon and I will be playing the role of main lead Kaoru. The Sun's Song will begin from May 7 - 29, so I hope many people come and enjoy the musical. Hwaiting!