The costumed comedy shock-rockers will be joined by Canadian metal act 3 Inches of Blood, all-grrl thrashers Unholy Pink and Black Flag co-founder Keith Morris. Now, before you bellow, "That is so effing cool!" know that it gets better: the show is free. Well, at least for those lucky enough to be chosen from the concert's sign-up page. More deets can be found on the concert flyer after the break.