The #1 R&B song on April 7, 2011

Look at Me Now By Chris Brown featuring Lil Wayne & Busta Rhymes

Other #1 songs on April 7, 2011

#1 Hit Song

E.T.
Katy Perry featuring Kanye West

UK #1 Song

On the Floor
Jennifer Lopezfeaturing Pitbull

#1 Country Song

Are You Gonna Kiss Me or Not
Thompson Square

#1 Alternative Hit

Rope
Foo Fighters

#1 Dance Track

On the Floor
Jennifer Lopez featuring Pitbull