Wonder Girls member Sunmi showed some love to her idol juniors Umji and Yerin of GFRIEND.

On August 19, Umji and Yerin’s shared birthday, Sunmi uploaded a photo of herself making a thumbs up and wrote, “Thumb up ??????❤️.”

Although at first glance a rather mysterious post, GFRIEND fans were quick to realize that Sunmi was giving a shout out to Umji and Yerin in a clever way (Umji’s name in Korean means “thumb”).

엄지척 ??????❤️ A photo posted by 이선미 SUNMI LEE (@miyayeah) on Aug 19, 2016 at 5:38am PDT

Umji had recently revealed that she is a fan of Sunmi and how she would love to get a birthday congrats from her, and it looks like Sunmi granted her wish!

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