Release History
| Region | Date | Format |
|---|---|---|
| United States | April 7, 2009 | Rhythmic and urban airplay |
| April 14, 2009 | Mainstream airplay | |
| United Kingdom | May 4, 2009 | Digital download |
| June 22, 2009 | CD single | |
| Brazil | September 9, 2009 | Digital download |
Read more about this topic: Knock You Down
Famous quotes containing the words release and/or history:
“The near touch of death may be a release into life; if only it will break the egoistic will, and release that other flow.”
—D.H. (David Herbert)
“We aspire to be something more than stupid and timid chattels, pretending to read history and our Bibles, but desecrating every house and every day we breathe in.”
—Henry David Thoreau (1817–1862)