Girl’s Day is a South Korean girl group formed by Dream T Entertainment in 2010. The group originally debuted with five members, but they gained significant popularity with the lineup consisting of Sojin, Yura, Minah, and Hyeri. Girl’s Day is known for their versatile musical style, ranging from cute and bubbly songs to more mature and sexy concepts. Some of their biggest hits include “Expectation,” “Something,” and “Female President.” Over the years, they became one of the most recognized and beloved girl groups in K-pop, also achieving success in acting and variety shows. Each member has pursued solo projects after their group activities slowed down, particularly Hyeri, who gained widespread fame through acting.