Singer Ailee softened listeners' early morning sensibilities. 

Ailee appeared on MBC’s standard FM ‘Kim Eana Night Letter’ aired on Dec. 19. 

On the same day, Ailee sang the English version of her new song, "Sweater," which was released recently, and showed off her first live English version of "Night Letter" by showing off her face as the king of the region’s vocal endings.

Asked by DJ Kim Eana about how she became close to her best friend Eric Nam, who also starred with her, Ailee said, "There are many things that are right because we are having a deep conversation, and when we talk about serious stories, we listen well. We are very committed to each other," she said boasting of their close friendship.

In addition, Ailee showed off her honey voice chemistry by singing Eric Nam and Carol live, or even communicated closely with listeners by presenting a performance of "Evening Sky," in which DJ Kim Eana participated in the song.