The iTunes' top five selling singles and albums for the week ending Jan. 3:


1. "Grenade," Bruno Mars

2. "Firework," Katy Perry

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

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

5. "Black and Yellow," Wiz Khalifa



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

2. "Brothers," The Black Keys

3. "TRON: Legacy," Daft Punk

4. "Sigh No More," Mumford & Sons

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

-- Associated Press