[Behind] 孫東雲 迷你2輯 [Happy Birthday] 相關花絮
錄音花絮
-1- https://youtu.be/zUCER7v7YWc
-2- https://youtu.be/DCSKRfUPuwQ
└中字 https://b23.tv/BV1Sx4y1c7DT
MV拍攝花絮
https://youtu.be/bjextPhdlaw
簽售花絮
https://youtu.be/fyjysb5mTXA
└中字 https://b23.tv/BV1Ee4y1c7WR
cr.OFFICIAL HIGHLIGHT (官方英字),
(中字) itsjustjo