Falsetto doesn't count. You can wipe most of those "artists" from your list.
Billie Gibbons has a four octave vocal range! I AM LITERALLY DYING WITH LAUGHTER!
WTF?
http://en.wikipedia.org/wiki/Categor...ve_vocal_range
That's not even right, buts its closer to the truth than the cut and paste bullshit you coughed up.