Video of Machine Gun Kelly performs at Cleveland's Summer Jam! Jul 12th 2010Machine Gun Kelly performs at Cleveland's Summer Jam! Check out MGK performing at Cleveland's FIRST Summer Jam at Time Warner Amphitheater in front of a sold out house....LACE UP!!!!! Comments Body * More information about text formats Text format Medium MediumImages with a data-picture-mapping attribute will be responsive, with a file size appropriate for the browser width. Post Image Add a new file Files must be less than 96 KB.Allowed file types: gif jpg jpeg.