GREATEST SINGERS

Freddie
Thom Yorke
Elvis
Jeff Buckley

Well, my usual vein of music is a tad different from what has been listed thus far. But here are mine anyway

Christian Älvestam
Burton C. Bell
Hernan Hermida
Mikko Kotamäki
Chris Catanzaro

Bruce Dickinson, Rob Halford, Freddie Mercury, or Layne Staley.