Oh My Girl posed with YooA's older brother Yoo Jun Sun after the siblings appeared together on the latest episode of 'Hit The Stage'!

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During the episode, after Girls' Generation's Hyoyeon performed her stage, her partner was asked to introduce himself. It turns out, he's YooA's biological older brother! Yoo Jun Sun is a choreographer for 1MILLION Dance Studio, one of the most popular dance studios active in Korea!

Dance must run deep in YooA's family!