May 18 marks Big Bang Taeyang's 27th birthday (28th in Korean age), and to celebrate, Taeyang's older brother and actor Dong Hyun Bae took to his Instagram to bid his little bro Happy Birthday!

The actor uploaded a heartwarming childhood photo of the siblings, with the comment, "My little brother~ Happy Birthday~ ^^ I luuu you~~"

Don't the siblings look just inseparable in their childhood photo? Happy Birthday Taeyang!

Tip: SunGal

? ??~ ?? ???~^^ ????~~ #?????? #?????? #mabro #loveyou

A photo posted by Dong HyunBae (@___hyunbae___) on May 17, 2016 at 8:30am PDT

#Taeyang #dong hyun bae

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