The #1 song in the UK on May 13, 2011

Party Rock Anthem By LMFAO featuring Lauren Bennett and GoonRock

Other #1 songs on May 13, 2011

#1 Hit Song

E.T.
Katy Perry featuring Kanye West

#1 R&B Song

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

#1 Country Song

A Little Bit Stronger
Sara Evans

#1 Alternative Hit

Rope
Foo Fighters

#1 Dance Track

Dancing Tonight
Kat DeLuna