Powerman 5000 have dropped off the inaugural “Summer Of Screams” tour due to “medical reasons.” Despite this, the trek will continue as planned with Mushroomhead, Psychostick (08/17-08/31), The Browning, Kissing Candice, UnSaid Fate, Voodoo Terror Tribe (08/17-08/30), and Skyburial (08/31-09/15) all set to perform. Organizers issued the following statement: “Unfortunately we must announce that due…