The #1 dance song on January 2, 2009

I Hate This Part By The Pussycat Dolls

Other #1 songs on January 2, 2009

#1 Hit Song

Single Ladies (Put a Ring on It)
Beyoncé

UK #1 Song

Hallelujah
Alexandra Burke

#1 R&B Song

Single Ladies (Put a Ring on It)
Beyoncé

#1 Country Song

Here
Rascal Flatts

#1 Alternative Hit

Sex on Fire
Kings of Leon