Smashing Pumpkins announce some big sideshows from Splendour In The Grass. The major legacy act of this year’s Splendour In The Grass is Billy Corgan’s Smashing Pumpkins (well, his band consists of all non-original members Mike Byrne, Nicole Fiorentino and Jeff Schroeder). Now Corgan has booked three tidy stadium shows around the nation in July,