The #1 R&B song on May 27, 2010

Un-Thinkable (I'm Ready) By Alicia Keys

Other #1 songs on May 27, 2010

#1 Hit Song

OMG
Usher featuring will.i.am

UK #1 Song

Nothin' on You
B.o.B featuring Bruno Mars

#1 Country Song

The Man I Want to Be
Chris Young

#1 Alternative Hit

Lay Me Down
The Dirty Heads featuring Rome Ramirez

#1 Dance Track

Imma Be
The Black Eyed Peas