Who are some of the Best Live Singers you've heard.
http://www.youtube.com/watch?v=nQtfC2OrHM0
Evanesence is one of my favorites to listen to Live.
Another one Is Stephen Lynch, who has one of the best singing voices I've heard for a while. Rhapsody is also quite awesome live.
Edit: Why the hell isn't Evanesence linked? AH well, not energy to fix it.