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 steel decks rock with the lightning shock, and shake with the
great recoil,
And the sea grows red with the blood of the dead and reaches for his spoil—
But not till the foe has gone below or turns his prow and runs,
Shall the voice of peace bring sweet release to the men behind the
guns!”
—John Jerome Rooney (1866–1934)
“Every literary critic believes he will outwit history and have the last word.”
—Mason Cooley (b. 1927)