The #1 alternative song on December 21, 2010

Tighten Up By The Black Keys

Other #1 songs on December 21, 2010

#1 Hit Song

Firework
Katy Perry

UK #1 Song

When We Collide
Matt Cardle

#1 R&B Song

Can't Be Friends
Trey Songz

#1 Country Song

Why Wait
Rascal Flatts

#1 Dance Track

Loca
Shakira featuring Dizzee Rascal