sentence: charts singles - billboard ( north america ) personnel ; velvet revolver scott weiland lead vocals slash lead guitar , backing vocals duff mckagan bass , backing vocals matt sorum drums , backing vocals dave kushner rhythm guitar ; additional personnel robin c. hendrickson art direction brett kilroe art direction dan winters photography ; production personnel josh abraham production douglas grean keyboard on tracks 6 , 10 and 13 , vocal production , engineering , associate producer of '' set me free '' nick raskulinecz production on '' set me free '' andy wallace mixing chris young mixing assistance ryan williams engineering brandon belsky engineering assistance rocco guarino engineering assistance george marino mastering miscellaneous the version of '' set me free '' on the album is different from the version on the hulk soundtrack with different mixing and also contains a slightly different ending .