Check out SeoHyun's adorable posts with the birthday girl, HyoYeon

Here's SNSD's SeoHyun greeting her unnie a happy birthday!

Check out her adorable posts with HyoYeon who is celebrating her birthday today~

"Our our~Hyoyeon unnie~♡ Happy, happy 27th birthday~~♡ A cheerful, thoughtful unnie who is full of charms~^^ I'm always thankful~and let's be together continuously~for a long, long time in the future too~I totally love you♡♡♡ #Hyoyeon unnie's #birthday !! Please greet her a lot, lot♡♡"

"Isn't she lovely~~??♡ㅋㅋㅋㅋㅋㅋㅋㅋToday is #Hyoyeon 's day♡"

"Thanks to unnie, it's always fun~haha#Hyoyeonrobotwhoisfilmingavideo haha"

"Happy birthday to #Hyoyeon unnie♡♡#HyoHyunsisterswhoarefullofexcitement haha"

"Ah..Hyoyeon unnie who is full of charms..♡Hahaha#HyoyeonunnieHappyBirthday ♡"

♥ More of Seohyun's updates here

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Seohyun's Instagram