Bands who benefited from a bandmate who bounced.

Before Steve Perry's soaring vocals in "Don't Stop Believin'," Journey's lead singer was a fellow by the name of Greg Rollie. While Perry long since left the band, during the years he was with the band they saw massive success.

Founded by close collaborators Adam Granduciel and Kurt Vile in Philadelphia, PA in 2005, the War on Drugs saw a signficant creative resurgence when Vile left the band to do his own thing.

Wilco formed in 1994 after Jay Farrar and Jeff Tweedy experienced creative differences in their alt country band Uncle Tupelo. I'm keeping this in the category because the new band included all current members of Uncle Tupelo lineup except Farrar, including John Stirratt,  Ken Coomer, and multi-instrumentalist Max Johnston.

Syd Barrett was one of the original lyricists and vocalists for the popular English rock band Pink Floyd. After he left the band in 1972, the band went on to create pure brilliance in song after song and album after album.

It's hard to think about Canada's power trio, Rush, without mentioning Neal Peart. Yet, the original man behind the drum stool was John Rutsey, before Peart joined forces with Geddy Lee and Alex Lifeson,