Karen O from the Yeah Yeah Yeahs. Her voice can be high-pitched and unusual and soft and full of feeling and I love it. The difference between Black Tongue or Date With The Night vs. Skeletons is amazing.

Brendon Urie from Panic! at the Disco. This man can sing and he has a beautiful voice. Panic! at the Disco - I Write Sins Not Tragedies (acoustic), Panic! at the Disco - Lying Is The Most Fun A Girl Can Have Without Taking Off Her Clothes (acoustic).

Lana Del Rey is an obvious choice for probably many people. She's so haunting to me. Lana Del Rey - Video Games

Amy Winehouse. I miss her. Amy Winehouse - Valerie

Nate Ruess from fun/The Format. His voice is completely inspiring - there is no other way to put it. Seeing him sing live makes you feel like you can do anything. fun. - Barlights

Tom Waits. His raspy, creepy, deep voice is unmatched by any other that I can even think of, and this song is such a good example of that. Tom Waits - God's Away on Business

Erica Winnerstrom from The Heartless Bastards is probably my favorite female vocalist besides Jenny Lewis. I've never heard a voice like hers in my whole life. Heartless Bastards - The Mountain

Justin Warfield from She Wants Revenge. His voice has this monotonous kind of tone to it, but it's also kindof a little bit strange and a little bit creepy, which makes me like it. She Wants Revenge - Tear You Apart

And Jenny Lewis. She can convey so much emotion in her voice and it completely sets the tone of the song she's singing. She can sound sassy or sad or regretful or haunting or just plain fun as all hell, and I love her folksy sort of twang. There is a reason she's used in so many projects (The Postal Service, The Watson Twins, Eric Burdon from The Animals, etc) and why her personal projects (Rilo Kiley, Jenny and Johnny, self-titled) do so well. She's so diverse and flexible and just all-around amazing. This song she does with Elvis Costello is an example of how she makes a song so fun to me, and this second song makes me sad just by listening to it, without relating to it at all. Jenny Lewis with Elvis Costello - Carpetbaggers, Rilo Kiley - Does He Love You?