Question: Which group did this musician from the rock band that released Zeitgeist join shortly after the its breakup?

Related documents: [0]  [DOC] James Joseph Chamberlin (born June 10, 1964) is an American drummer and record producer. He is best known as the drummer for the alternative rock band The Smashing Pumpkins. Following the 2000 breakup of the band, Chamberlin joined Pumpkins frontman Billy Corgan in the supergroup Zwan and also formed his own group, the Jimmy Chamberlin Complex. In 2005, Chamberlin joined Corgan in reforming The Smashing Pumpkins; he eventually left the group in March 2009, though he returned again in 2015 for a summer tour. He performed in the group Skysaw until 2012. He is currently active under the Jimmy Chamberlin Complex name. In addition to his current work as CEO, Chamberlin has joined Chicago jazz saxophonist Frank Catalano for a string of 2013–15 performances in the Chicago area. An EP by Catalano and Chamberlin "Love Supreme Collective - EP" was released on the 29th of July 2014. [END] 
[1]  [DOC] Zeitgeist is the seventh album by American alternative rock band The Smashing Pumpkins, released on July 10, 2007 in the United States and Canada. It was the first album The Smashing Pumpkins released after their 2000 disbandment and 2005 reunion. The album was produced by Roy Thomas Baker, Billy Corgan, Jimmy Chamberlin, and Terry Date. The album would be Chamberlin's last with the band before his departure in 2009. The album debuted strongly, but sales soon decreased, and critical reception was mixed. It was certified Gold in the United States on February 1, 2008. [END]  
Answer: Zwan
Zwan