Sistar was a South Korean girl group formed in 2010 by Starship Entertainment. The group consisted of Hyolyn, Bora, Soyou, and Dasom. Their debut studio album So Cool was released on 9 August 2011. Their second album, Give It to Me, was released on 11 June 2013.
Seunghee (승희) is a South Korean singer under WM Entertainment. She is a member of the girl group OH MY GIRL. She debuted as a member of OH MY GIRL on April 21, 2015 with the group’s first mini album Oh My Girl.
Seo Ju-hyun, known professionally as Seohyun, is a South Korean singer and actress. She debuted as a member of girl group Girls’ Generation in August 2007, which went on to become one of the best-selling artists in South Korea and one of South Korea’s most popular girl groups worldwide.