The #1 dance song on December 15, 2010

Barbra Streisand By Duck Sauce

Other #1 songs on December 15, 2010

#1 Hit Song

Firework
Katy Perry

UK #1 Song

The Time (Dirty Bit)
The Black Eyed Peas

#1 R&B Song

Can't Be Friends
Trey Songz

#1 Country Song

Why Wait
Rascal Flatts

#1 Alternative Hit

Tighten Up
The Black Keys