Just like the movie thread. WAY too many to choose.
Let's see...in no particular order:
Tom Jones. Saw him in concert last year and he was simply FABULOUS. And yes, women in the audience actually DO throw their scanties at him.
Peter Murphy from Bauhaus. For such a little fellow he has a huge thundering voice.
Bing Crosby.
Neil Diamond is somewhere on my list.
Chrissy Hynde from the Pretenders. My inner rock-chick really wishes I were her.
Siouxsie Sioux. Same reason as Chrissy Hynde.
Yma Sumac. Huge vocal range and freaky-bizzare songs. If you have the time, google her and track down a recording. Very very interesting.
Anthony Kiedis from Red Hot Chili Peppers
ALL of the Beatles. Yes, even Ringo.
Jim Morrison, of the Doors.
The lead singer from the Moody Blues. His name escapes me. Not the original one, but the big blond fellow with the giant sideburns.
Wilson Pickett
Miriam Makeba
David Bowie. The Ziggy Stardust / Aladdin Sane incarnation, not the 80's dude.
Lots more flooding my brain, but I'll stop there.
Trinity