Aretha Franklin, Barbra Streisand, Chaka Khan, Roberta Flack, Gladys Knight

Beyoncé, Mariah Carey, Christina Aguilera, Rihanna, Britney Spears, Lady Gaga, Céline Dion, Alicia Keys, Brandy, Adele, Nicki Minaj, Ariana Grande, Ciara, Katy Perry, Selena, BoA, Diamanda Galás, Kelly Clarkson, Miley Cyrus, Regine Velasquez, LeAnn Rimes, Sam Smith, 태연, Normani Kordei, Missy Higgins, Sunidhi Chauhan, Demi Lovato, Monica, Chvrches, Ashanti, Leona Lewis, Stacie Orrico, Jolin Tsai, Siti Nurhaliza, Little Mix, Lani Misalucha, Mai Kuraki, Sarah Geronimo, Jessica Simpson, Kelly Rowland, JoJo, Giorgia, Nicole Scherzinger, Jennifer Hudson, Alexz Johnson, Nina Girado, Mandisa, Paula DeAnda, Jessica Mauboy, Pixie Lott