Bands with two or more canonical singers in different eras - eviltoast

I was listening to Marillion the other day and I started thinking about bands that have different eras with different singers and each of these eras have their fans. I guess there are loads of such bands when you started thinking about it.

Some that I can think of off the top of my head are:

  • Marillion (Fish and Steve Hogarth)
  • Fates Warning (John Arch and Ray Alder)
  • Black Sabbath (Ozzy and Dio)
  • Genesis (Peter Gabriel and Phil Collins)
  • Nightwish

These are interesting because the vocalist gives the voice to the band and in many cases, the sound changes drastically with the change of vocalist. Still, many bands manage to pull it off.