The #1 R&B song on December 21, 2009

I Invented Sex By Trey Songz featuring Drake

Other #1 songs on December 21, 2009

#1 Hit Song

Empire State of Mind
Jay-Z and Alicia Keys

UK #1 Song

Killing in the Name
Rage Against the Machine

#1 Country Song

Need You Now
Lady Antebellum

#1 Alternative Hit

Uprising
Muse

#1 Dance Track

Bad Romance
Lady Gaga