What were the 10 best-selling albums of 1999?
Here are the ten best-selling albums of 1999 ranked according to sales:

1. Millenium by The Backstreet Boys sold 40,000,000 copies.
2. Baby One More Time by Britney Spears sold 27,000,000 copies.
3. Supernatural by Santana sold 25,000,000 copies.
4. All the Way...A Decade of Song by Celine Dion sold 18,513,351 copies.
5. Ricky Martin by Ricky Martin sold 17,000,000 copies.
6. Enema of the State by Blink-182 sold 16,000,000 copies.
7. Californication by Red Hot Chili Peppers sold 16,000,000 copies.
8. Christina Aguilera by Christina Aguilera sold 14,000,000 copies.
9. Human Clay by Creed sold 13,195,000 copies.
10. No Angel by Dido sold 12,000,000 copies.