Sistar (; stylized as SISTAR) was a South Korean girl group formed in 2010 by Starship Entertainment. The group consisted of Hyolyn, Bora, Soyou and Dasom. They made their official debut with the song "Push Push" on 3 June 2010. Their debut studio album So Cool was released on 9 August 2011. Their second album, Give It to Me, was released on 11 June 2013. Their biggest hits include "So Cool", "Alone", "Touch My Body", "Loving U" and "Give It to Me". Their fourth single, "So Cool," debuted at number one on the Gaon Digital Chart as well as the Billboard Korea K-Pop Hot 100 singles chart, starting a streak of 9 consecutive number-one hits before the group's disbandment in 2017. Sistar has amassed prominent digital sales, being one of five Korean artists to have nine or more number one singles on Gaon. History 2010–2012: Debut, finding success with So Cool, Alone and Loving U Sistar began their group activities early in 2010 with commercials and magazine photoshoots. They made their official debut with the song "Push Push" on 3 June 2010, followed by their debut television performance on 4 June on Music Bank. The group returned on 25 August with their second single, "Shady Girl", the music video featured Kim Hee-chul of Super Junior. The group received a lot of media attention when a fan-taken video was uploaded online showing the group filming their performance at "Let's Start Sharing Concert" on 28 August. During the middle of their performance, member Bora suddenly fell onstage, fracturing her thumb. This prompted the other members to stop singing and assist her off the stage with the help of staff. Several minutes later, Bora returned to stage along with the other members to finish filming their performance. The video went viral on the internet and was featured on G4's online show Attack of the Show!, and an RTL Television news segment. On 14 September, Sistar was invited to perform at Japan's "Hallyu Music Festival" as the only Korean girl group present. On 10 October, Sistar performed on the show Teen Superstar in Thailand. The group released their third single, "How Dare You," in November. On 9 December, the group attended the Golden Disc Awards and won the "Newcomer Award." On 27 December, Sistar won their first music show award for "How Dare You" on Music Bank. On 27 April, it was announced that