What Do I Call You (Allen album)

"What Do I Call You" is the first single of Allen. It was released on April 4th, 2021 with "What Do I Call You" serving as the title track.
== Tracklist ==
# Taeyeon - What Do I Call You     2:48
== Playlist ==
The album's playlist can be found under https://open.spotify.com/playlist/5DedJuzRqnA4hmPcZApXl6?si=cf03f3da89b64b6b.
== M/V ==
The title track's music video can be found under https://www.youtube.com/watch?v=5LbFdY6vGsQ.