SM Entertainment shared a new teaser clip of Girls' Generation "Holiday Night" featuring member YoonA in light of the group's ten year anniversary.

The 35-second footage consists a compilation of the idol group's past performances and interviews as YoonA expressed what Girls' Generation means to her. "I feel more energized when I'm performing as a Girls' Generation member. It's the happiest moment of my life."

Check out the nostalgic clip below!