On April 28, 2011, Starship Entertainment announced that they are creating a sub unit for SISTAR and released a teaser. The single was released on May 3, 2011. The official music video was then released on the same day. The name SISTAR19 was meant to reflect the feelings of a 19 year old and was inexperienced in love.[1] Their debut performance was on M! Countdown on May 5.[2]
2013: "Gone Not Around Any Longer"[]
In December 2012, Starship Entertainment announced that SISTAR19 will be having a comeback in January 2013.[3] On January 24, 2013, the duo released photo teasers of their comebacks and announced that their song will be released on January 31.[4] On January 28, SISTAR19 released teasers for their song "Gone Not Around Any Longer."[5] On January 31, the official music video and single were then released. "Gone Not Around Any Longer" talks about being in love but soon drifting apart.[6] On February 7, the rehearsal video was released.[7]
2017: SISTAR's disbandment[]
On May 23, 2017, Starship announced that SISTAR would disband after their releasing their final single "Lonely" on May 31.[8]
2024: "No More (Ma Boy)"[]
On November 17, 2023, it was announced that SISTAR19 would be making a comeback in January 2024, almost eleven years since their last comeback.[9] On January 3, 2024, it was announced that they will return with the digital single "No More (Ma Boy)" on January 16.[10]