The iTunes' top-10 selling singles and albums for the week ending Dec. 13:

> SINGLES:

1. "Firework," Katy Perry

2. "Grenade," Bruno Mars

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

4. "What's My Name?" Rihanna, Drake

5. "Raise Your Glass," P!nk

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

7. "That's All She Wrote (feat. Eminem)," T.I.

8. "Black and Yellow," Wiz Khalifa

9. "Bottoms Up (feat. Nicki Minaj)," Trey Songz

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

> ALBUMS:

1. "Glee: The Music -- The Christmas Album," Glee Cast

2. "No Mercy," T.I.

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

4. "TRON: Legacy," Daft Punk

5. "4X4=12," Deadmau5

6. "Sigh No More," Mumford & Sons

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

8. "All American Nightmare," Hinder

9. "Loud," Rihanna

10. "Burlesque," Various Artists

-- Associated Press