SISTAR19 (씨스타19) is a girls band of 2 members under the agency Starship Entertainment. The band is composed of Bora, and Hyorin. They debut the 3rd May 2011 with the album 'Ma Boy'. Their most popular music video 'Ma Boy' reached more than 50'000'000 views on Youtube. SISTAR19 get their first win the 7th February 2013 at M!Countdown with 'Gone Not Around Any Longer'.