This week in big names playing tiny venues, Eddie Vedder has joined the Cubs's fourth annual Hot Stove Cool Music fundraiser at Metro on July 9, where he'll perform with an ensemble featuring members of Wilco and Cheap Trick. Also appearing are baseball writer Peter Gammons, broadcaster Len Kasper, and Cubs boss Theo Epstein. A limited number of general admission tickets go on sale today at noon for $75 at and Metro's box office at 3730 N. Clark St. All proceeds will benefit Epstein's youth-focused Foundation To Be Named Later. Start your engines.