The #1 dance song on January 2, 2004

Me Against the Music By Britney Spears featuring Madonna

Other #1 songs on January 2, 2004

#1 Hit Song

Hey Ya!
OutKast

UK #1 Song

Mad World
Michael Andrews and Gary Jules

#1 R&B Song

You Don't Know My Name
Alicia Keys

#1 Country Song

There Goes My Life
Kenny Chesney

#1 Alternative Hit

Numb
Linkin Park