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. Their biggest hits include "So Cool", "Alone", "Touch My Body", "Loving U" and "Give It to Me". Their fourth single, "So Cool," debuted at number one at Billboard Korea K-Pop Hot 100 singles chart.
Park Bo-ram is a South Korean singer. She took a part in Mnet's SuperStar K2 and finished in eighth place. Park made her debut with release digital single "Beautiful" featuring Zico on August 7, 2014. That year, she won Artist of the Year for August at the Gaon Chart K-Pop Awards and was nominated for Best New Artist at the Mnet Asian Music Awards, Golden Disk Awards, and Melon Music Awards.
Kim Min-jae, also known as Real.be, is a South Korean actor and rapper under Stone Music Entertainment. He has featured in television series Second 20s, My First Time, Dr. Romantic, Guardian: The Lonely and Great God and Tempted. He was also a contestant in rap competition Show Me the Money 4 in 2015.