CHICAGO - JANUARY 15: Singer Billy Corgan hugs his former drummer Jimmy Chamberlin, who used to play with Smashing Pumpkins and Zwan, on January 15, 2005 at the Double Door in Chicago, Illinois. (Photo by Matt Carmichael/Getty Images)
CHICAGO - JANUARY 15: Singer Billy Corgan hugs his former drummer Jimmy Chamberlin, who used to play with Smashing Pumpkins and Zwan, on January 15, 2005 at the Double Door in Chicago, Illinois. (Photo by Matt Carmichael/Getty Images)