on 4 June. "Lonely" debuted at number one on the Gaon Digital Chart released on 8 June. 2022: Reunion performance On 22 July 2022, the members of Sistar reunited to perform several of their hit songs on the final episode of You Hee-yeol's Sketchbook as a way to show support for Hyolyn's then-recent comeback. Subgroups Sistar's subgroup, Sistar19, debuted in 2011, featuring Hyolyn and Bora. The group's first single, "Ma Boy", was released in May 2011 followed by a second single, "Gone Not Around Any Longer", in January 2013, alongside the EP with the same name, released on 31 January. Discography So Cool (2011) Give It to Me (2013) Tours Concerts 2012: Femme Fatale 2013: Live Concert: S 2014: Live Concert: S - Hong Kong Filmography Television Awards and nominations See also List of best-selling girl groups References External links 2010 establishments in South Korea K-pop music groups Musical groups disestablished in 2017 2017 disestablishments in South Korea Musical groups established in 2010 Musical groups from Seoul South Korean dance music groups South Korean electronic musicians South Korean girl groups South Korean contemporary R&B musical groups Starship Entertainment artists MAMA Award winners Melon Music Award winners