Remember when Leighton Meester (Blair) wore a shiny disco ball to the MTV Movie Awards? We just realized that Lea Michele (Rachel) wore that very same disco ball dress in Vogue’s Fashion’s Night Out photo shoot!

Credit: Jason Merritt/Getty Images/Norman Jean Roy/Vogue Photo: Who Wore It Best? Lea and Leighton in Balmain

When wearing something as sassy as this sparkly frock from Balmain’s fall 2011 collection, it’s best to keep the other elements of your outfit to a min. Both girls clearly understand this rule of thumb — and both look flawless as far as we’re concerned.

So basically, this comes down to a popularity contest. Which girl do you like more? Who wore it best?