The #1 dance song on April 9, 2011

On the Floor By Jennifer Lopez featuring Pitbull

Other #1 songs on April 9, 2011

#1 Hit Song

E.T.
Katy Perry featuring Kanye West

UK #1 Song

On the Floor
Jennifer Lopezfeaturing Pitbull

#1 R&B Song

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

#1 Country Song

Are You Gonna Kiss Me or Not
Thompson Square

#1 Alternative Hit

Rope
Foo Fighters