Kiki Kiya, born in 2010, appeared on tvN's 'Amazing Saturday,' sparking a buzz about the age difference with Girls' Generation's Taeyeon.

On the broadcast on the 25th, Dohun, Sion, Gyehun, and Kiya appeared as guests and participated in the dictation game. When NCT's Sion greeted by shouting "Two, three," Taeyeon said, "Even when you're alone, you need 'two, three,'" which made everyone laugh. When Boom asked, "Isn't that usually to get the members to focus?" Taeyeon replied, "You definitely need 'two, three.'"

Later, Kiki's youngest member Kiya introduced herself as "Kiki's youngest and 'Nolto's youngest, Kiya." The cast showed interest in Kiya's age, and she revealed that she was born in 2010, entered high school this year, and turned 15. In response, Taeyeon called the male cast members Nucksal, Young K, and P.O "little uncles," lightening the mood.

When Shin Dong-yup called Taeyeon "aunt," Kiya said, "All pretty people are older sisters, so Taeyeon is my older sister," making Taeyeon smile.