Biography
There are at least 3 bands using the name Kaizen:
1) Brazillian progressive rock band formed in 1992.
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2) French metal band formed in 1994 in Elancourt. They released two albums so far : Clear The Path (2003) and Sink (2005).
3) Russian alternative rock band formed in 2010.
Biography text from Last.fm, available under CC BY-SA.