(Taeyeon's Instagram)

A video of Taeyeon dancing to “Red Flavor,” a hit from her labelmate Red Velvet, is going viral via social media.

The short clip the Girls’ Generation member uploaded to her Instagram account on Sunday shows Taeyeon cheerfully dancing to the chorus of “Red Flavor” in a comfortable-looking outfit after clapping her hands and shouting, “five, six, seven!”

She also captioned the video, writing, “(People say) the ending is the key part.”

Check out how Taeyeon nails the performance.

(lotus@heraldcorp.com)