Beyonce
Alicia Keys
Frank Ocean

Whitney Houston
Luther Vandross
Donny Hathaway

Katy Perry
Nick Minaj
Rihanna

Rihanna
Taylor momsen
Hayley Williams

I'm a guy, but i'd say Gaga, Whitney Houston and Adele.

Hunter Hayes
Phillip Phillips
Adam Levine

Whitney
Mariah Carey
Rihanna's unique voice in princess of china and some songs.
Beyonce (her ballads and her low tone.) whisper nasty girl voice
Gaga (her jazz voice)
Amy Winehouse.
Janet Jackson(whisper voice )
Nat King Cole
Pink (rocker voice )
Katy Perry.

My three best would be
Mariah
Whitney
Nat King Cole

Kelly Clarkson
Demi Lovato
Adele

What kind of legendary list?

ke$ha
britney
nicki minaj

Rihanna
Porcelain Black
Nicole Scherzinger

Emeli Sande
Whitney Houston
Chris Mann

Brandon Flowers.

Tiziano Ferro
Adam Lambert
Antony Hegarty

I'm a guy so I want to sound like one. Anyway it would be

Steve Perry
Freddie Mercury
Micheal Jackson

Morgana King
Frank Sinatra
Luther Vandross

Something a la Bruno Mars with Michael Jackson or maybe Eric Clapton