The #1 song in the UK on January 4, 2011

When We Collide By Matt Cardle

Other #1 songs on January 4, 2011

#1 Hit Song

Grenade
Bruno Mars

#1 R&B Song

Can't Be Friends
Trey Songz

#1 Country Song

Felt Good on My Lips
Tim McGraw

#1 Alternative Hit

Waiting for the End
Linkin Park

#1 Dance Track

Louder (Put Your Hands Up)
Chris Willis