Knock You Down - Keri Hilson featuring Kanye West & Ne-Yo

• Entered the US chart on 11 April 2009 and spent 31 weeks in the charts, reaching a high of number 3.
• Entered the UK chart on 02 August 2009 and spent 22 weeks in the charts, reaching a high of number 5.

• Now That's What I Call Music! 73 - CDNOW73