Last night's Chris Isaak Hour featured Billy Corgan and his now departed bandmate Jimmy Chamberlin in a predictably petulant Q&A intercut with sweet acoustic performances to remind us why we still care about the Smashing Pumpkins. Along with their touring musicians, Chamberlin and a harmonica-playing Corgan were joined by horns and violin on four post-Zeitgeist tracks plus an Issak-assisted cover ...