Jack Sweeney's Open Mic residency

While Zwan was in the studio recording Mary Star of the Sea, they held a "secret" open mic every week at The Hideout in Chicago, called Jack Sweeney's Open Mic. The was belief Jack Sweeney was actually Matt Sweeney of Zwan, and rumors were confirmed at the debut event on September 9, 2002. Chicago-area musicians would sign up and play two-song sets every Monday, in between the two-song sets by Zwan members Billy Corgan, Matt Sweeney, Paz Lenchantin and David Pajo. Occasionally the full band (minus Jimmy Chamberlin) would perform.