Single Ladies (Put a Ring on It)

"Single Ladies (Put a Ring on It)" - is a song by American singer Beyoncé Knowles. It was written by The-Dream, Tricky Stewart and Beyoncé Knowles for her third studio album, "I Am... Sasha Fierce" (2008).
Music video.
The music video for "Single Ladies (Put a Ring on It)" was shot on September 14, 2008 and directed by Jake Nava and released to major outlets on October 13, 2008. In the video, Knowles is performing as Sasha Fierce. The video features much choreography, showing Sasha with two other female dancers in all black leotards.
The video is based upon a 1960s routine performed by Gwen Verdon.
It was uploaded to YouTube on October 3, 2009.