K-pop singer Yuri from girl group Girls' Generation at the Thursday event. (OSEN)

K-pop singers Yuri from Girls' Generation and Amber from f(x) were among the stars spotted at a fashion event in Seoul on Friday.

Japanese fashion brand Uniqlo hosted the "Uniqlo UT Zone Open Event" at its Myeong-dong flagship store to promote its subsidiary UT line.

Themed "more comfortable, more fun T-shirts," the spring-summer UT collection will roll out clothing in 1,200 different graphic prints until May.

Uniqlo is a popular casual wear brand in Korea known for its affordability, simple design and garment quality.

K-pop singer and rapper Amber from gir group f(x) at the Uniqlo event, Thursday. (OSEN)

By Yoon Sarah (sarah356@heraldcorp.com)