kd lang. oh yes.
bonnie raitt
harry connick jr.
lyle lovett
sheryl crow
janis ian
and (please nobody hurt me) barbara streisand.

lemme explain! barbara sings the sexiest song ever, "more than you know", and she sings it with the smoothest creamiest most gorgeous soaring tone and does it all (seemingly) without breathing. i swoon. i swoon big time.