Billy Corgan Will Release Over 60 Unreleased Zwan Songs in Multiple Sets

Billy Corgan has confirmed plans to release more than 60 unreleased songs from Zwan, the band he formed after Smashing Pumpkins’ initial breakup. In an interview with Stereogum, Corgan said the material will be remixed and remastered, spanning tracks from the group’s lone album Mary Star of the Sea and two additional LPs worth of unheard writing. “There will be, like, maybe two more LPs of unreleased tracks,” he said.

Rather than a single sprawling box set, Corgan will split the archive into separate releases. “Because there’s so much Zwan stuff, I’m gonna put it out in different sets, otherwise the box set would be, like, 20 records long and it’s just too much to ask fans to take on.” The songs, he emphasized, are not demos or alternate takes: “60+ unreleased Zwan songs that have never been released. Not just versions, like other songs. There was a lot of writing in that band.”

Zwan existed only briefly, from 2001 to 2003. Corgan assembled the supergroup with drummer Jimmy Chamberlin, guitarist Matt Sweeney, and bassists David Pajo and Paz Lenchantin. Their sole album, produced and released in 2003, yielded the single “Honestly” before the band dissolved later that year. The unreleased cache stands as a document of an intensely creative window that never reached the public.

No release date has been set. Corgan remains active with Smashing Pumpkins, who put out Aghori Mhori Mei in 2024 and will tour behind Mellon Collie and the Infinite Sadness this fall, but the Zwan material arrives as its own, long-shelved chapter.