Girl group SECRET member Song Jieun revealed her teaser photo for their 4th mini album, Letter from Secret.

TS Entertainment released Song Jieun's teaser photo today online.

In the picture, she is wearing a cute polka dot top and has her hair up in a high ponytail, giving off a cute and fresh vibe.

Her paradise-like background with palm trees and blue skies also allowed her to shine and glow even more.

SECRET will be making their official comeback on April 30 with their new song, "YooHoo."