Metal Up Your Ass returns for a night of thrashing, squealing, head-banging goodness guaranteed to melt the faces and hearts of all the metalheads of Shanghai. Over 25 musicians from the best heavy bands in Shanghai again take the stage to cover some of the best songs and bands in all of metal. Bands from many sub-genres and time periods include Slayer, Metallica, Arch Enemy, Mastodon, Judas Priest, Iron Maiden, and many, many more. This time it's for good too, as portions of the ticket sales will go to EGRC, Educating Girls of Rural China. So mosh freely in those cathartic pits knowing full well that it's all for a good cause.