Pacific Coast News
Reese Witherspoon worn the Zac Posen dress to the 2011 MTV Movie Awards.
Kim Kardashian wore the same dress while doing a cake tasting.
And most recently, Kelly Clarkson wore it for a performance on 'The View'.
Pacific Coast News/WENN/Getty Images
Reese, Kim, and Kelly all in Zac Posen.
Who Wore It Best: Reese, Kim Or Kelly.