1. Taylor Swift: $170m (£137.8m)
2. Adele: $80.5m (£65.2m)
3. Madonna: $76.5m (£62m)
4. Rihanna: $75m (£60.8m)
5. Beyonce: $54m (£43.8m)
6. Katy Perry: $41m (£33.2m)
7. Jennifer Lopez: $39.5m (£32m)
8. Britney Spears: $30.5m (£24.7m)
9. Shania Twain: $27.5m (£22.3m)
10. Celine Dion: $27m (£21.9m)
