2. Adele, SITA/AP 3. Taylor Swift, SITA/AP 4. Celine Dion, SITA/AP 5. Jennifer Lopez, SITA/AP 6. Dolly Parton, SITA/AP 7. Rihanna, SITA/AP 8. Britney Spears, SITA/AP 9. Katy Perry, SITA/AP 10. Barbra Streisand, SITA/AP