iTunes’ top 10 selling singles and albums of the week ending Dec. 20, 2010:

Singles

1. “Grenade,” Bruno Mars

2. “Firework,” Katy Perry

3. “6 Foot 7 Foot (feat. Cory Gunz),” Lil Wayne, Cory Gunz

4. “The Time (Dirty Bit),” Black Eyed Peas

5. “What’s My Name?” Rihanna, Drake

6. “We R Who We R,” Ke$ha

7. “Raise Your Glass,” P!nk

8. “Black and Yellow,” Wiz Khalifa

9. “Tonight (feat. Ludacris & DJ Frank E),” Enrique Iglesias

10. “Bottoms Up (feat. Nicki Minaj),” Trey Songz

By The Associated Press