Five Detroit rock bands will perform to help out one of their most ardent fans and music scene advocate D.d. Kethman on Friday, July 28 at 8 pm at PJ's Lager House in Detroit. Join The Zotz,White Shag, The Dregs, Rocket to Rehab, Panic or Pain and The Motor City Rah Rahs cheer D.d on in her fight against cancer.