i don't really have a ton of voice claims for normal speech but there are absolutely vocalists i think of

vriska - norah jones

https://www.youtube.com/watch?v=OiKuW3xXwmA

jane - april hartman

https://www.youtube.com/watch?v=EISsqOF1FQg

damara - backxwash

https://www.youtube.com/watch?v=OBV14xBb2yI

dave - lupe fiasco

https://www.youtube.com/watch?v=33sclePNcic

yiffy - missy dabice

https://www.youtube.com/watch?v=EvgYIXc4JDA