Olivia Wilde.

Olivia Wilde or Kate Bosworth?

Olivia

Olivia Wilde or Katy Perry

Neither

Billie Holiday or Ella Fitzgerald

Billie

Billie Holliday or Joss Stone

Billie or Etta James

Etta

Etta James or Norah Jones

Etta or Tina Turner

Tina

Tina Turner or Lily Allen

Tina or Diana Ross

Diana

Diana Ross or Beyonce?

Ross

peggy lee or patsy cline

Patsy or Leann Rhimes

Leann

Leann Rhimes or Celine Dion

Leann

Leann Rimes or Carrie Underwood?

Leann Rimes

Leann Rimes or Shania Twain

Shania or Trisha Yearwood

Shania Twain

Shania Twain or Faith Hill

Shania

Shania Twain or Emma Bunton

Shania or Geri Halliwell

shania

taylor swift or carrie underwood