Taeyeon's gif in the behind-the-scenes video of her activities is drawing attention from netizens.

Netizens who saw Taeyeon's costume responded by saying, "The costume is amazing," "Nervous Taeyeon is cute," and "I can't believe she is 33 years old." etc.

Kim Tae-yeon (born March 9, 1989), commonly known by her stage name Taeyeon, is a South Korean singer. She debuted as a member of girl group Girls' Generation in 2007, which went on to become one of the best-selling artists in South Korea and one of the most popular K-pop girl groups worldwide.