Taeyeon of Girls' Generation (from SM Entertainment) is releasing a new mini-album ‘What Do I Call You’ on December 15th.

In particular, the title song "What Do I Call You" is an R&B pop song featuring a minimal and rhythmical melody, featuring Taeyeon's vocals who sing the feelings of him who still circling around him after the breakup stand out. It is expected to capture the attention by sensibly containing the memories that were together with the feelings for the lover.

In addition, Taeyeon wrote and composed the song, "To the Moon", and 'Playlist' with acoustic guitar and piano, and retro organ sound harmonized with Taeyeon's soft and lazy voice, spread hotly. 'Wildfire' is an impressive lyrics that compares the feelings of love to flames spreading in the field, R&B ballad 'Galaxy', a miracle moment in which everything changes when meeting one person, released as a single last May. A total of 6 songs are included, including 'Happy'.