The #1 song on September 21, 2013

Roar By Katy Perry

Other #1 songs on September 21, 2013

UK #1 Song

Roar
Katy Perry

#1 R&B Song

Blurred Lines
Robin Thicke featuring T.I. & Pharrell

#1 Country Song

That's My Kind of Night
Luke Bryan

#1 Alternative Hit

Royals
Lorde

#1 Dance Track

Turn the Night Up
Enrique Iglesias