Don't fuck with A$AP

During a late night/early morning performance at the SXSW music festival, someone stole someone from the A$AP mob's do rag while crowd surfing. This started a whole other chain of events. When the mob demanded that the do rag be returned, someone started throwing beer up on stage. After some warnings, the entire mob jumped into the audience and started a huge brawl. A$AP might be a pretty boy, but apparently he doesn't fuck around either. Check out the footage above.