iTunes' Official Music Charts for the week ending Dec. 16, 2013:

Top Songs

1. "Say Something", Christina Aguilera, A Great Big World

2. "Timber (feat. Ke$ha)", Pitbull

3. "The Monster (feat. Rihanna)", Eminem

4. "Counting Stars", OneRepublic

5. "Let Her Go", Passenger

6. "Story of My Life", One Direction

7. "Royals", Lorde

8. "Demons", Imagine Dragons

9. "Burn", Ellie Goulding

10. "White Walls (feat. ScHoolboy Q & Hollis)", Macklemore & Ryan Lewis