Rapper causes an uproar at a Microsoft Store October 2, 2012 by admin Tweet Machine Gun Kelly, a rapper known for his fast lyrical flow was in a Microsoft store performing last week, when things escalated for the worst. He was reportedly giving the middle finger to employees. Read more… Neowin Related Posts:Microsoft is reportedly asking hundreds of Chinese…The new Microsoft Store app update lets users pick…Microsoft employees are reportedly getting a big one…Google likely to lay off 10,000 ‘poor performing' employeesMicrosoft is reportedly working on a "Steam of…