The most tallented singer of all time.

[will]

based on vocal ability or the type of tallent that you can't fabricate, A.K.A Britney Speres.

my list goes like this;
Alex Lloyd
Ben Harper
Dave Matthews - this is my #1.
Elvis Presley
Jeff Buckley
Michael Jackson
Neil Diamond
Paul Kelly
Roy Orbison
Tim Buckley - Jeff's Father

there are others that i'm sure should get a mention, but i cant think of any others i've had on high rotation like these guys.