Sistar19
Sistar19 was the first and only official sub-group of South Korean girl group Sistar and was formed by Starship Entertainment in 2011. The sub-group is composed of Bora and Hyolyn. Their debut single "Ma Boy" was released in May 2011.
Sistar19 was the first and only official sub-group of South Korean girl group Sistar and was formed by Starship Entertainment in 2011. The sub-group is composed of Bora and Hyolyn. Their debut single "Ma Boy" was released in May 2011.