US Chart Roundup: How Many Of The Best-Selling Albums & Singles Of 2010 Do You Own?

It's the post-holiday rut when new releases are scarce and D'luv turns to drinking instead of blogging, so below is this week's boring ol' Top 10, but instead—like we did here with the UK on Sunday—we'll focus on Billboard's roundup of the 10 best-selling singles and albums of 2010.

When all the final numbers were tallied up, Katy Perry emerged with the most paid downloads (4.4 million, to be exact) last year, for "California Gurls." Billboard also notes that the five best-selling songs of '10 all cleared the 4 million downloads mark.

Eminem wound up with the most albums sold with Recovery (3.42 million)—an improvement, sales-wise, over the best-seller of 2009 (Taylor Swift's Fearless, 3.22 million). And I love how Sade beat Ke$ha and Drake. That said, it was a grim year overall for sales. If you want to get really depressed, check this article out.

Anyway, I've got three of last year's best-selling albums (Lady Gaga, Sade, Ke$ha) and I believe five of the singles. How many do you own?

The U.S. Top 10 this week:

1. "Firework" - Katy Perry *4 weeks*
2. "Grenade" - Bruno Mars 
3. "We R Who We R" - Ke$ha 
4. "What's My Name" - Rihanna feat. Drake
5. "Raise Your Glass" - Pink 
6. "Tonight (I'm Lovin' You)" - Enrique Iglesias ft. Ludacris & DJ Frank E 
7. "The Time (The Dirty Bit)" - The Black Eyed Peas
8. "Black And Gold" - Wiz Khalifa
9. "Just The Way You Are" - Bruno Mars
10. "Just A Dream" - Nelly 

The 10 Best-Selling Singles Of 2010

1. "California Gurls" - Katy Perry feat. Snoop Dogg
2. "Hey, Soul Sister" - Train
3. "Love The Way You Lie" - Eminem feat. Rihanna
4. "Dynamite" - Taio Cruz
5. "Airplanes" - B.o.B feat. Hayley Williams
6. "OMG" - Usher feat. will.i.am 
7. "Not Afraid" - Eminem
8. "Just The Way You Are" - Bruno Mars
9. "Break Your Heart" - Taio Cruz feat. Ludacris
10. "Need You Now" - Lady Antebellum

The 10 Best-Selling Albums Of 2010 

1. Recovery - Eminem
2. Speak Now - Taylor Swift
3. Need You Now - Lady Antebellum
4. My World 2.0 - Justin Bieber
5. The Gift - Susan Boyle
6. The Fame - Lady Gaga
7. Soldier Of Love - Sade
8. Thank Me Later - Drake
9. Raymond v. Raymond - Usher
10. Animal - Ke$ha