Lily Allen

Joan Baez

Corinne Bailey-Rae

Celine Dion

Marianne Faithfull

Lisa Gerrard

Barbara Hendricks

Katherine Jenkins

Norah Jones

Rickie-Lee Jones

Kelis

Buzzy Lee (Sasha Spielberg)

Amy MacDonald

Aimee Mann

Katie Melua

Liza Minelli

Kylie Minogue

Alanis Morissette

Joanna Newsom

Brandy Norwood

Heather Nova

Katy Perry

Maisie Peters

Pink

Joss Stone

Shakira

Patti Smith

Barbra Streisand

Emiliana Torrini

Bonnie Tyler