Beatburger surprises fans with a music video for their third project “She So High,” featuring TVXQ’s Changmin and actress Goo Hye Sun. Beatburger consists of five members: SM’s performance director Shim Jae Won, rock band Schizo’s former guitarist Joo Sung Min, music producer and synthesize player Flash Finger, SM sound engineer Goo Jong Pil, and lastly rapper MQ. Beatburger’s goal…