The #1 dance song on August 21, 2009

Waking Up in Vegas By Katy Perry

Other #1 songs on August 21, 2009

#1 Hit Song

I Gotta Feeling
The Black Eyed Peas

UK #1 Song

I Gotta Feeling
The Black Eyed Peas

#1 R&B Song

Pretty Wings
Maxwell

#1 Country Song

You Belong with Me
Taylor Swift

#1 Alternative Hit

New Divide
Linkin Park

Notable August 21 birthdays in the 2000s

Corbin Carroll

Born August 21, 2000