A video of SISTAR's Soyu auditioning in her school uniform has been spreading like wildfire across Korea's internet community boards. According to Starship Entertainment, the video was her final audition; Soyu decided to sing Navi's 'On the Road'. Many netizens who've watched the clip voiced their surprise at Soyu's innocent image in her uniform. Check out her audition video down below! Source: Star News via Nate