Mnet's "M! Countdown" showed the members Girls' Generation in their dressing rooms, waiting to perform on stage.

Girls' Generation member Sunny took over the camcorder, recording the cute poses of her fellow members.

Yuri flashes the victory sign wearing a fedora and Yoona revealed her boyish look by demonstrating a part of their choreography.

Seohyun stated, "I can't wait to perform for you guys!" Sunny, Seohyun, and Jessica concluded the clip with a goodbye.

On this day's "M! Countdown", GOT7, Nell, TVXQ, Ladies Code, Lunafly, Lyn, Melody Day, Park Ji Yoon, Bantan Boys, BESTie, BTOB, Sunmi, Girls' Generation, JungGiGo, CNBLUE, 1PS, and Taewon performed on set.