SM artists such as Girls' Generation members YoonA, Yuri, Seohyun, and Hyoyeon can be seen posing together backstage at Taeyeon's solo concert.�

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In addition, TVXQ's Yunho and Super Junior members Leeteuk, Eunhyuk,�and Donghae held up glowsticks and banners, showing support while emitting a friendly vibe.

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The caption read, "My precious, one-of-a-kind people."

Meanwhile, Taeyeon held 'The Magic of Christmas Time' solo concert on December 22-24 at Kyunghee University's Peace Palace in Seoul.

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A post shared by TaeYeon (@taeyeon_ss) on Dec 25, 2017 at 3:20pm PST

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A post shared by TaeYeon (@taeyeon_ss) on Dec 25, 2017 at 4:19pm PST