Foo Fighters have confirmed an array of additional support acts for the upcoming North American leg of the tour. In Chicago, Melkbelly will open the Sunday, July 29 show, followed by The Struts and then Foo Fighters. The following night Monday, July 30, Touched By Ghoul will open the show, followed by The Breeders preceding Foo Fighters' headlining set. Gates open at 5p.m. and the music starts promptly at 7 p.m. each …