The #1 song in the UK on December 20, 2009

Killing in the Name By Rage Against the Machine

Other #1 songs on December 20, 2009

#1 Hit Song

Empire State of Mind
Jay-Z and Alicia Keys

#1 R&B Song

I Invented Sex
Trey Songz featuring Drake

#1 Country Song

Need You Now
Lady Antebellum

#1 Alternative Hit

Uprising
Muse

#1 Dance Track

Bad Romance
Lady Gaga