The #1 song in the UK on May 18, 2011

The Lazy Song By Bruno Mars

Other #1 songs on May 18, 2011

#1 Hit Song

Rolling in the Deep
Adele

#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

Beautiful People
Chris Brown featuring Benny Benassi