Tulsa, Oklahoma will host its seventh annual DFest on July 25-26. The event draws together more than 100 performers and includes a tradeshow and conference at the Crowne Plaza Hotel in downtown Tulsa. The roster of artists includes The Disco Biscuits, Paramore, Ghostland Observatory, Zappa Plays Zappa, Helmet and Edison Glass as well as numerous regional acts. Music will take place throughout Tulsa with the full details at the DFest site.