SISTAR's sub-unit SISTAR19 was featured in the top spot of the Best of Billboard Korea K-Pop Hot 100 for 2013 on December 13 with their single, "Gone Not Around Any Longer."
Additionally, the duo's song also made it to the top of the charts in Mnet.com's year-end streaming and downloading rankings.
The song, "Gone Not Around Any Longer" was produced by the Brave Brothers, which featured a great harmony between Hyorin's known deep and emotional voice and Bora's rap, which made the single popular.
Furthermore, Hyorin is now in her promotional activities for her first solo album "Love & Hate," and SISTAR then came out with a winer love sog together with K.Will .