With Roger Federer dominating Richard Gasquet, the US Open fans needed something additional to savor Wednesday night. So, Justin Timberlake and Jimmy Fallon provided just that by dancing to Beyonce's Single Ladies.

Here's Jimmy Fallon & Justin Timberlake dancing in the stands to Beyonce on the arena screen

The two good friends provide the fans at Arthur Ashe Stadium a fun laugh

Jimmy Fallon, Justin Timberlake break out a Beyonce 'Single Ladies' dance at the US Open
Jimmy Fallon, Justin Timberlake break out a Beyonce 'Single Ladies' dance at the US Open