termasuk lagu hit mereka,"So Cool" dan "Alone".<ref>[http://www.allkpop.com/2011/09/sistar-addresses-rumors-about-being-deliquents "SISTAR addresses rumors about being delinquents"], ''[[Allkpop]]'', 2 September 2011.</ref>
== Perusahaan ==
Brave Entertainment didirikan pada tahun 2008 oleh Kang Dong Chul, yang lebih dikenal dengan nama panggungnya Brave Brothers, setelah ia meninggalkan [[YG Entertainment]].<ref>[http://www.allkpop.com/2009/08/brave_brothers_drop_his_debut_album_and_tells_his_story "Brave Brothers Drops His Debut Album and Tells Why He Left YG"] {{webarchive |url=https://web.archive.org/web/20101227155922/http://www.allkpop.com/2009/08/brave_brothers_drop_his_debut_album_and_tells_his_story |date=December 27, 2010 }}, ''[[Allkpop]]'', 18 August 2009.</ref> Brave Entertainment milik Brave Brothers berkolaborasi dengan [[Starship Entertainment]] ketika terungkap bahwa ia memproduksi lagu debut [[Sistar]], "Push Push" <ref>[http://www.allkpop.com/2010/05/sistars-push-push-mv-teaser-released "SISTAR’s Push Push MV Teaser released"], ''[[Allkpop]]'', 31 May 2010.</ref> dan memproduksi beberapa lagu untuk mereka, termasuk lagu hit mereka,"So Cool" dan "Alone".<ref>[http://www.allkpop.com/2011/09/sistar-addresses-rumors-about-being-deliquents "SISTAR addresses rumors about being delinquents"], ''[[Allkpop]]'', 2 September 2011.</ref>