B.B. King, John Mayer, Vince Gill, Los Lobos, and others will be in attendance July 28th in Chicago. The Festival benefits Clapton's rehabilitation center in Antigua and Pollstar reports, "Clapton's vision for the Crossroads Guitar Festival has been to create an event where his friends and contemporaries can have fun and jam together for the benefit of a good cause." I wonder if anyone will play "Cocaine"?