The #1 R&B song on July 21, 2012

Mercy By Kanye West featuring Big Sean, Pusha T, & 2 Chainz

Other #1 songs on July 21, 2012

#1 Hit Song

Call Me Maybe
Carly Rae Jepsen

UK #1 Song

Spectrum (Say My Name)
Florence and the Machine

#1 Country Song

You Don't Know Her Like I Do
Brantley Gilbert

#1 Alternative Hit

Little Talks
Of Monsters and Men

#1 Dance Track

Chasing the Sun
The Wanted