Singer Taeyeon will release her new EP "What Do I Call You" on Dec. 15, according to a poster unveiled on Friday which also included details of content to follow.

Taeyeon's fourth EP will be teased with concept images from Dec. 7 up until the day of the release, while highlight clips of the music video will begin releasing on Dec. 10 until Dec. 14.

On the day of the release, Taeyeon will sit down for a live streaming session on Naver V Live to countdown the hour until the album drops at 6 p.m.

The EP will feature six tracks that will each show Taeyeon's charms, according to SM Entertainment.

"What Do I Call You" comes a month after Taeyeon's Japanese EP "#GirlsSpkOut" which dropped on Oct. 30.

The dance-pop title track "#GirlsSpkOut" was pre-released on Oct. 1, proving a hit with its positive message encouraging girls to be proud of who they are and embrace themselves.

BY YOON SO-YEON [yoon.soyeon@joongang.co.kr]