#crowdmatrix #gmm13 let's hope the rain will pass so that you all can be the worlds largest METAL LIGHT SHOW.
Get ready to rock at @GraspopMetal with @deesnider and Twisted Sister! #crowdmatrix play.google.com/store/apps/d… appstore.com/crowdmatrix
CrowdMatrix retweeted
If you are attending @GraspopMetal join @TwistedSisterNY in a special moment' Download play.google.com/store/apps/d… appstore.com/crowdmatrix RT