Conversation so far:
did Billy Corgan release any songs as a solo artist?
Billy Corgan released a solo album, TheFutureEmbrace, in 2005 and a collection of poetry, Blinking with Fists.
What is Billy Corgan's band Zwan?
Zwan was an American alternative rock supergroup that was formed by Billy Corgan and Jimmy Chamberlin, lead singer and guitarist, and the drummer of the Smashing Pumpkins

Question: who else was in Zwan?
Self-contained rewrite: who else was in the band Zwan besides Billy Corgan and Jimmy Chamberlin?