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The iTunes' top 10 selling singles and albums for the week ending Jan. 17:

>Singles:

1. "Hold It Against Me," Britney Spears

2. "Grenade," Bruno Mars

3. "Tonight (feat. Ludacris & DJ Frank E)," Enrique Iglesias

4. "Firework," Katy Perry

5. "Black and Yellow," Wiz Khalifa

6. "What the Hell," Avril Lavigne

7. "The Time (Dirty Bit)," Black Eyed Peas

8. "We R Who We R," Ke$ha

9. "6 Foot 7 Foot (feat. Cory Gunz)," Lil Wayne

10. "H.A.M," Kanye West, Jay-Z

***

>Albums:

1. "Country Strong (More Music from the Motion Picture)," Various Artists

2. "Sigh No More," Mumford & Sons

3. "Thank You Happy Birthday," Cage the Elephant

4. "Country Strong (Original Motion Picture Soundtrack)," Various Artists

5. "Showroom of Compassion," Cake

6. "Brothers," The Black Keys

7. "Rehab: The Overdose," Lecrae

8. "My Beautiful Dark Twisted Fantasy," Kanye West

9. "TRON: Legacy," Daft Punk

10. "Doo-Wops & Hooligans," Bruno Mars

-- Associated Press