Which vocalist was part of more bands, Spencer Chamberlain or Donnie Van Zant?
Spencer Chamberlain: Spencer Chamberlain (born January 4, 1983) is an American musician, best known for being the current lead vocalist for the metalcore band Underoath. Spencer Chamberlain:  He is currently the vocalist of Sleepwave. Donnie Van Zant:  He is best known for being a member of the band 38 Special, from its formation in 1974 until 2013.
i don't know