The #1 song in the UK on January 21, 2010

Replay By Iyaz

Other #1 songs on January 21, 2010

#1 Hit Song

Tik Tok
Kesha

#1 R&B Song

It Kills Me
Melanie Fiona

#1 Country Song

Consider Me Gone
Reba

#1 Alternative Hit

Uprising
Muse

#1 Dance Track

Push N Pull
Noferini & Marini vs. Sylvia Tosun