20th Anniversary tour

The 20th Anniversary tour took place in the mainland United States in late summer through winter 2008. Billy Corgan has stated it was a "very contentious time", as evidenced by many shows resulting in the crowd "throwing things at us, booing as we played 25 minute versions of Pink Floyd songs." Jimmy Chamberlin referred to the tour as "20 years of sadness", which some fans misconstrued as being a tour dedicated to Mellon Collie and the Infinite Sadness, which may have further angered some attendees. Nonetheless, Corgan remembers the tour fondly, which included several two-night run shows at select cities with unique setlists, and a number of special guests including Corgan's own family.