Billy Corgan has 65 unreleased songs for new Zwan box set

Smashing Pumpkins‘ Billy Corgan has spoken about a new box set that is in the works for his side-project supergroup Zwan.READ MORE: Smashing Pumpkins release new single ‘Beguiled’ and tell us about their three-part “rock opera”, ‘ATUM’Earlier this year, Zwan’s only album ‘Mary Star Of The Sea’ turned 20, though the album has never been made available on streaming services.
In a new interview with Rolling Stone, Corgan was asked whe